WO2018161967A1

WO2018161967A1 - Method, equipment and system for allocating local media access control address

Info

Publication number: WO2018161967A1
Application number: PCT/CN2018/078624
Authority: WO
Inventors: 敖婷; 喻敬海
Original assignee: 中兴通讯股份有限公司
Priority date: 2017-03-10
Filing date: 2018-03-09
Publication date: 2018-09-13
Also published as: CN108574743A

Abstract

Disclosed in the embodiment of the present disclosure are a method, equipment and a system for allocating a local media access control address. The method can comprise: a to-be-allocated equipment sends a registration message of a local MAC address; when the to-be-allocated equipment senses no conflict, determining an address block of the to-be-allocated MAC as the MAC address of the to-be-allocated equipment, and sending a declaration message of the MAC address.

Description

Method, device and system for allocating local media access control address

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. 201710144446.5, filed on Mar.

Technical field

The present disclosure relates to network communication technologies, and in particular, to a method, device, and system for allocating local media access control (MAC) addresses.

Background technique

The expansion of the data center and the introduction of virtualization not only bring about an increase in physical equipment, but also bring about an exponential growth of virtual devices. The growth of these devices has led to a sharp rise in the consumption of MAC addresses. At present, the conventional MAC address is that the above device has been assigned a fixed 48-bit MAC address at the time of manufacture or shipment to facilitate communication between devices.

The traditional MAC address will have many problems when it is applied. For example, the MAC address space capacity cannot meet the increasingly consumed MAC address; the MAC address is fixed; the MAC address is not layered and cannot provide other device-related Information, such as location information. In order to solve the problems of the traditional MAC address, the Institute of Electrical and Electronics Engineers (IEEE) proposed a concept of local MAC address, that is, the MAC address is no longer globally unique in some network environments. A 48-bit address, but a unique localized address within the network. And a unified allocation of addresses can be used to uniformly allocate a local MAC address to each network element in the network.

Currently, for the allocation of the local MAC address, the local MAC address is usually applied in the form of a request packet, so only the address allocation of the network device to the host and the like is involved, which is suitable for a small network, such as a small internal network scenario. For large networks, how to obtain MAC addresses in multiple network devices requires related protocols. In addition, for the local MAC address allocation scheme, the host can obtain the MAC address by self-declaration, but the entire network architecture is a client and server (C/S, Client/Server) architecture, so the centralized server is adopted. In this way, local MAC address allocation cannot be performed under other network architectures.

This section is background information related to the present disclosure, but the background information is not necessarily prior art.

Summary of the invention

In order to solve the above technical problem, embodiments of the present disclosure are expected to provide a local address allocation method, device, and system; not only implementing a local address allocation protocol in multiple network devices, but also adapting to different local network architectures.

According to an aspect of the present disclosure, a method for allocating a local media access control address is provided, including:

The registration message of the local address is sent by the device to be allocated; wherein the registration message includes: a message identifier for uniquely identifying the registration message and an address block to be allocated that needs to be registered;

And determining, by the device to be allocated, the address to be allocated as the address of the device to be allocated, and sending a declaration message of the address; wherein the declaration message includes: The message identifier of the abbreviated message and the block of the address to be allocated that need to be declared.

According to the embodiment of the present disclosure, the device to be allocated does not detect any conflict, and includes: after the device to be allocated sends the registration message according to a preset interval according to a preset interval, Determining the conflicting failure message of the registration message or the affirmation message of the address conflict, determining that the device to be allocated does not perceive an address block conflict to be allocated; wherein the conflict failure message includes: a message for uniquely identifying the conflict failure message The message identifier and the conflicting address block; the message identifier in the conflict failure message has a corresponding relationship with the message identifier in the registration message.

According to an embodiment of the present disclosure, the method further includes: when the device to be allocated senses a conflict, the device to be allocated reselects an address block to be allocated, and resends the registration message.

According to an embodiment of the present disclosure, the method further includes: when the device to be allocated receives the declaration message sent by the other device, and the address block that needs to be declared in the declaration message sent by the other device and the registration message The address block to be allocated that needs to be registered is used for collision detection to determine whether a conflict occurs: if a conflict occurs, the address block to be allocated is reselected, and the original address block to be allocated in the registration message that needs to be registered is replaced with a reselection. The block of addresses to be allocated; if no conflicts occur, no processing is done.

According to an embodiment of the present disclosure, the to-be-allocated address block that needs to be registered in the registration message is obtained by the device to be allocated according to a preset selection policy.

According to another aspect of the present disclosure, a method for allocating a local media access control address is provided, including:

The allocated device receives the registration message sent by the device to be allocated; wherein the registration message includes: a message identifier for uniquely identifying the registration message and an address block to be allocated that the device to be allocated needs to register;

The allocated device performs collision detection on the to-be-allocated address block in the registration message and its own local address;

When a conflict occurs, the allocated device sends a conflict failure message to the to-be-allocated device; wherein the conflict failure message includes a message identifier for uniquely identifying the conflict failure message and an address block in which a conflict occurs.

According to an embodiment of the present disclosure, the message identifier in the conflict failure message has a correspondence relationship with the message identifier in the registration message.

According to still another aspect of the present disclosure, a method for allocating a local media access control address is provided, including:

The network device receives the registration message sent by the device to be allocated, where the registration message includes: a message identifier for uniquely identifying the registration message and an address block to be allocated that the device to be allocated needs to register;

Determining, by the network device, whether the registration message is forwarded to other network devices other than the device to be allocated in the network according to a preset forwarding policy;

And when the network device receives the conflict failure message for the registration message, forwarding the conflict failure message to the device to be allocated; wherein the conflict failure message includes a message for uniquely identifying the conflict failure message. The message identifier and the address block where the conflict occurred;

And when the network device receives the adjacency message, establishing a forwarding mapping relationship according to the adjacency message; wherein the adjacency message includes a message identifier for uniquely identifying the adjacency message and an address to be declared.

According to an embodiment of the present disclosure, the network device determines, according to a preset forwarding policy, whether to forward the registration message to other network devices other than the device to be allocated in the network, including: when the network device is configured to be allocated. When the proxy of the device, the network device performs collision detection on the address block to be allocated in the registration message and the address of the allocated device of the network device proxy: when a conflict occurs, the network device sends a corresponding conflict failure The message, when no conflict occurs, the network device forwards the registration message to other network devices other than the device to be allocated in the network.

According to an embodiment of the present disclosure, the network device determines, according to a preset forwarding policy, whether to forward the registration message to other network devices other than the device to be allocated in the network, including: when the network device is not configured to be allocated. When the device is a proxy, the network device forwards the registration message to other network devices other than the device to be allocated in the network.

According to an embodiment of the present disclosure, the network device forwarding the registration message to other network devices other than the device to be allocated in the network, including: after the network device acquires a receiving port for receiving a registration message, establishing a location Corresponding relationship between the message identifier of the registration message and the receiving port; sending the registration message through a port other than the receiving port.

According to an embodiment of the present disclosure, the establishing a forwarding mapping relationship according to the adjacency message includes: the network device establishing a forwarding mapping relationship between a receiving port that receives the aforesaid message and an address declared in the abbreviated message.

The database server receives the registration message sent by the device to be allocated, where the registration message includes: a message identifier for uniquely identifying the registration message and an address block to be allocated that needs to be registered;

The database server performs collision detection on the to-be-allocated address block and the saved address: wherein the saved address is an address in a usage state in the entire network;

When a conflict occurs, the database server sends a conflict failure message to the device to be allocated; wherein the conflict failure message includes a message identifier for uniquely identifying the conflict failure message and an address block in which a conflict occurs.

According to an embodiment of the present disclosure, the method further includes: when the database server receives the affirmation message, save an address that needs to be stated in the declaration message, and set a state of the address to be stated to a usage state. Wherein the affirmative message includes a message identifier for uniquely identifying the affirmative message and an address to be claimed.

According to still another aspect of the present disclosure, a device to be allocated is provided, where the device to be allocated includes: a first sending module, a sensing module, and a determining module;

The first sending module is configured to send a registration message of the local media access control address, where the registration message includes: a message identifier for uniquely identifying the registration message and an address block to be allocated that needs to be registered;

The sensing module is configured to detect a conflict; and when no conflict is perceived, the determining module and the first sending module are triggered;

The determining module is configured to determine the address block to be allocated as an address of the device to be allocated;

The first sending module is further configured to send a declaration message of the address, where the adjacency message includes: a message identifier for uniquely identifying the adjacency message and an address block to be allocated that needs to be declared.

According to an embodiment of the present disclosure, the sensing module is configured to not receive a conflict with the registration message after the first sending module sends the registration message according to a preset interval period according to a preset number of times. Determining, by the failure message, the affirmative message of the address conflict, and determining that the address block conflict is not to be allocated; wherein the conflict failure message includes: a message identifier for uniquely identifying the conflict failure message and an address block in which the conflict occurs; The message identifier in the conflict failure message has a corresponding relationship with the message identifier in the registration message.

According to an embodiment of the present disclosure, the to-be-distributed device further includes a selection module; the sensing module is further configured to trigger the selection module and the first sending module when a conflict is perceived; the selecting module, setting To reselect the block to be allocated; the first sending module is further configured to resend the registration message.

According to an embodiment of the present disclosure, the to-be-distributed device further includes a first receiving module and a first detecting module; the first receiving module is configured to receive a declaration message sent by another device; and the first detecting module is configured to The address block that needs to be declared in the affirmation message sent by the device performs collision detection with the to-be-allocated address block that needs to be registered in the registration message to determine whether a conflict occurs: if a conflict occurs, the selection module is triggered; if it does not appear If the conflict is not processed, the selection module is further configured to reselect the to-be-allocated address block, and replace the original to-be-allocated address block that needs to be registered in the registration message with the re-selected address block to be allocated.

According to still another aspect of the present disclosure, a distributed device is provided, the distributed device including: a second receiving module, a second detecting module, and a second sending module;

The second receiving module is configured to receive a registration message sent by the device to be allocated, where the registration message includes: a message identifier for uniquely identifying the registration message, and an address to be allocated that needs to be registered by the device to be allocated Piece;

The second detecting module is configured to detect a conflict between the to-be-assigned address block and the local address of the registration message, and trigger the second sending module when a conflict occurs;

The second sending module is configured to send a conflict failure message to the to-be-distributed device; wherein the conflict failure message includes a message identifier for uniquely identifying the conflict failure message and an address block in which a conflict occurs.

According to still another aspect of the present disclosure, a network device is provided, where the network device includes: a third receiving module, a forwarding module, and an establishing module;

The third receiving module is configured to receive a registration message sent by the device to be allocated, where the registration message includes: a message identifier for uniquely identifying the registration message, and an address to be allocated that needs to be registered by the device to be allocated Piece;

The forwarding module is configured to determine, according to a preset forwarding policy, whether to forward the registration message to other network devices other than the device to be allocated in the network;

The third receiving module is configured to trigger the forwarding module when receiving a conflict failure message for the registration message, and trigger the establishing module when receiving the declaration message; wherein the conflict failure message includes a message identifier for uniquely identifying the conflict failure message and an address block in which a conflict occurs;

The forwarding module is further configured to forward the conflict failure message to the to-be-distributed device;

The establishing module is configured to establish a forwarding mapping relationship according to the adjacency message; wherein the adjacency message includes a message identifier for uniquely identifying the adjacency message and an address to be declared.

According to an embodiment of the present disclosure, the forwarding module is configured to: when the network device is provided with a proxy of the allocated device, the to-be-allocated address block in the registration message and the allocated device of the network device proxy The address is detected by collision: and, when a conflict occurs, a corresponding conflict failure message is sent, and when no conflict occurs, the registration message is forwarded to other network devices other than the device to be allocated in the network.

According to an embodiment of the present disclosure, the forwarding module is configured to: when the network device does not set an agent of the allocated device, forward the registration message to other network devices other than the device to be allocated in the network.

According to an embodiment of the present disclosure, the forwarding module is configured to: after acquiring a receiving port for receiving a registration message, establishing a correspondence between a message identifier of the registration message and the receiving port; and The registration message is sent through a port other than the receiving port.

According to an embodiment of the present disclosure, the establishing module is configured to establish a forwarding mapping relationship between a receiving port that receives the affirmative message and an address that needs to be stated in the declaration message.

According to still another aspect of the present disclosure, a database server is provided, where the database server includes: a fourth receiving module, a third detecting module, and a third sending module, where

The fourth receiving module is configured to receive a registration message sent by the device to be allocated, where the registration message includes: a message identifier for uniquely identifying the registration message and an address block to be allocated that needs to be registered;

The third detecting module is configured to perform collision detection on the to-be-allocated address block and the saved address: wherein the saved address is an address in a used state in the entire network;

And, when a conflict occurs, triggering the third sending module;

The third sending module is configured to send a conflict failure message to the to-be-allocated device; wherein the conflict failure message includes a message identifier for uniquely identifying the conflict failure message and an address block in which a conflict occurs.

According to an embodiment of the present disclosure, the database server further includes: a saving module, configured to save an address that needs to be stated in the affirmative message when the fourth receiving module receives the affirmation message, and set the need to affirm The status of the address is set to the usage status; wherein the affirmative message includes a message identifier for uniquely identifying the affirmative message and an address to be claimed.

According to still another aspect of the present disclosure, a system for allocating a local media access control address is provided, wherein the system includes at least one device to be allocated, at least one allocated device, and at least one network device;

The device to be allocated is configured to send a registration message of a local address, where the registration message includes: a message identifier for uniquely identifying the registration message and an address block to be allocated that needs to be registered;

And when the device to be allocated does not detect any conflict, determining the to-be-allocated address block as the address of the device to be allocated, and sending a declaration message of the address; wherein the affirmative message includes: Identifying a message identifier of the abbreviated message and an address block to be allocated that needs to be declared;

The allocated device is configured to receive a registration message sent by the device to be allocated, where the registration message includes: a message identifier for uniquely identifying the registration message, and a to-be-allocated to be allocated by the device to be allocated Address block

And detecting collision of the to-be-allocated address block in the registration message with its own local address;

And sending a conflict failure message to the to-be-allocated device when a conflict occurs; wherein the conflict failure message includes a message identifier for uniquely identifying the conflict failure message and an address block in which a conflict occurs;

The network device is configured to receive a registration message sent by the device to be allocated, where the registration message includes: a message identifier for uniquely identifying the registration message, and an address to be allocated that needs to be registered by the device to be allocated Piece;

And determining, according to the preset forwarding policy, whether to forward the registration message to other network devices other than the device to be allocated in the network;

And, when receiving the conflict failure message for the registration message, forwarding the conflict failure message to the device to be allocated; wherein the conflict failure message includes a message identifier for uniquely identifying the conflict failure message And a block of addresses that have conflicts;

And, when receiving the affirmative message, establishing a forwarding mapping relationship according to the adjacency message; wherein the adjacency message includes a message identifier for uniquely identifying the affirmative message and an address that needs to be declared.

According to still another aspect of the present disclosure, a system for allocating a local media access control address is provided, the system comprising at least one device to be allocated, at least one database server, and at least one network device;

The database server is configured to receive a registration message sent by the device to be allocated, where the registration message includes: a message identifier for uniquely identifying the registration message and an address block to be allocated that needs to be registered;

And detecting the conflict between the to-be-assigned address and the saved address: wherein the saved address is an address in a usage state in the entire network;

An embodiment of the present disclosure provides a method, a device, and a system for allocating a local address; sending, by a device to be allocated, a block to be allocated to a network device of the entire network, and according to feedback of other network devices of the entire network for the block to be allocated. Declaring the address used by itself, realizing the registration of the local address and the collision detection of the local address, not only implementing the local address allocation protocol in multiple network devices, but also adapting to different local network architectures.

DRAWINGS

FIG. 1 is a schematic flowchart of a method for allocating a local MAC address according to an embodiment of the present disclosure;

FIG. 2 is a schematic flowchart of another method for allocating a local MAC address according to an embodiment of the present disclosure;

FIG. 3 is a schematic flowchart of still another method for allocating a local MAC address according to an embodiment of the present disclosure;

FIG. 4 is a schematic flowchart of another method for allocating a local MAC address according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a networking according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a multiple MAC allocation protocol data unit according to an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of a message delivery process according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of another multi-MAC allocation protocol data unit according to an embodiment of the present disclosure;

FIG. 9 is a schematic diagram of a message delivery process according to an embodiment of the present disclosure;

FIG. 10 is a schematic diagram of a message delivery process according to an embodiment of the present disclosure;

FIG. 11 is a schematic diagram of a message delivery process according to an embodiment of the present disclosure;

FIG. 12 is a schematic structural diagram of a link layer discovery protocol data unit according to an embodiment of the present disclosure;

FIG. 13 is a schematic structural diagram of a device to be allocated according to an embodiment of the present disclosure;

FIG. 14 is a schematic structural diagram of another device to be allocated according to an embodiment of the present disclosure;

FIG. 15 is a schematic structural diagram of hardware of a device to be allocated according to an embodiment of the present disclosure;

FIG. 16 is a schematic structural diagram of a distributed device according to an embodiment of the present disclosure;

FIG. 17 is a schematic structural diagram of hardware of an allocated device according to an embodiment of the present disclosure;

FIG. 18 is a schematic structural diagram of a network device according to an embodiment of the present disclosure;

FIG. 19 is a schematic structural diagram of hardware of a network device according to an embodiment of the present disclosure;

FIG. 20 is a schematic structural diagram of a database server according to an embodiment of the present disclosure;

FIG. 21 is a schematic structural diagram of another database server according to an embodiment of the present disclosure;

FIG. 22 is a schematic structural diagram of hardware of a database server according to an embodiment of the present disclosure;

FIG. 23 is a schematic structural diagram of a local MAC address allocation system according to an embodiment of the present disclosure;

FIG. 24 is a schematic structural diagram of another local MAC address allocation system according to an embodiment of the present disclosure.

detailed description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure.

The following describes the technical solution of the present disclosure by taking a MAC address as an example, but those skilled in the art should understand that the solution of the present disclosure can be used in any local address allocation method, device, and system.

Embodiment 1

FIG. 1 is a flowchart of a method for allocating a local MAC address according to an embodiment of the present disclosure. The process is applicable to a device to be allocated in a network that needs to allocate a local MAC address. The process may include:

S101: The device to be allocated sends a registration message of a local MAC address.

In the embodiment of the present disclosure, the device to be allocated may obtain the local MAC address by performing a self-declaration manner to the entire network. Therefore, the registration message may be sent to all device nodes of the entire network, or may be sent to the database through unicast. The server sends. The database server holds the MAC address that has been allocated and is in use, and the database server can be used to centrally manage the MAC address allocation of the entire network. The registration message may include: a message identifier for uniquely identifying the registration message and a MAC address block to be allocated that needs to be registered. It is easy to understand that the MAC address block to be allocated may contain one MAC address or multiple MAC addresses.

It can be understood that the MAC address block to be allocated that needs to be registered in the registration message may be obtained after the device to be allocated is selected according to a preset selection policy. Preferably, the preset selection policy may include: the device to be allocated learns the MAC address block that has not been used from the history record of the entire network data transmission.

S102: When the device to be allocated does not detect any conflict, determine the MAC address block to be allocated as the MAC address of the device to be allocated, and send a declaration message of the MAC address;

It should be noted that, the device to be allocated does not detect any conflicts, and when implemented, it may preferably include:

Determining, after the device to be allocated sends the registration message according to a preset interval period according to a preset number of times, without receiving a conflict failure message for the registration message or a declaration message that is verified as an address conflict. The device to be allocated does not detect the MAC address conflict pending application;

The conflict failure message includes: a message identifier for uniquely identifying the conflict failure message and a MAC address block in which a conflict occurs; thereby enabling the device to be allocated to reselect the to-be-allocated MAC address block to avoid the conflict failure message. The conflicting MAC address block is included, so that the retransmitted registration message has a greater probability of avoiding receiving the collision failure message. In addition, the message identifier in the conflict failure message has a corresponding relationship with the message identifier in the registration message, so that the registration message for the conflict failure message can be obtained. In this embodiment, the corresponding relationship is preferably the The message identifier in the conflict failure message is consistent with the message identifier in the registration message.

The abbreviated message includes a message identifier for uniquely identifying the affirmative message and a MAC address to be declared. It should be noted that, after receiving the abbreviated message, the network device in the network may establish and maintain a forwarding mapping relationship between the receiving port that receives the adjacency message and the MAC address that needs to be stated in the adjacency message, and the reserved form may be Update the forwarding table of the network device according to the established forwarding mapping relationship, so that the subsequent network device needs to forward the message to the receiving port through the query forwarding table, so that the message needs to be forwarded from the receiving port. Broadcast transmission.

Illustratively, when the device to be allocated senses a conflict, the foregoing solution may further include:

The device to be allocated reselects a block of MAC addresses to be allocated, and resends the registration message;

It should be noted that the retransmitted registration message may include a message identifier for uniquely identifying the registration message and a reselected MAC address block to be allocated.

It can be understood that, based on the foregoing description that the device to be allocated does not detect any conflict, it may be known that when the device to be allocated receives a conflict failure message for the registration message or a declaration message that is verified as an address conflict, The device to be allocated may determine that the conflict is perceived; the conflict failure message may include a message identifier for uniquely identifying the conflict failure message and a MAC address block in which the conflict occurs.

Illustratively, when the device to be allocated sends a registration message, the process may further include: when the device to be allocated receives the declaration message sent by the other device, and the MAC address and registration required to be declared in the declaration message sent by the other device The MAC address block to be allocated that needs to be registered in the message is used for collision detection to determine whether a conflict occurs:

If a conflict occurs, re-select the MAC address block to be allocated, and replace the original MAC address block to be allocated in the registration message with the re-selected Mac address block to be allocated;

If no conflict occurs, the registration message is not processed; preferably, the registration message can also continue to be sent.

It can be understood that the method of conflict detection may be to determine whether the intersection between the MAC address to be declared in the affirmative message sent by the other device and the MAC address block to be allocated in the registration message is empty, if the intersection is empty. , indicating a conflict; otherwise, there is no conflict.

The embodiment provides a method for allocating a local MAC address to a device to be allocated, and sends a MAC address block to be allocated to the network device of the entire network through the device to be allocated, and according to other network devices of the entire network, the MAC address to be allocated. The feedback of the block is used to declare the MAC address used by itself, realizing the registration of the local MAC address and the collision detection of the local MAC address, not only implementing the local MAC address allocation protocol in multiple network devices, but also adapting to different local network architectures. .

Embodiment 2

Based on the same technical concept of the foregoing embodiment, referring to FIG. 2, a flow of a method for allocating a local MAC address provided by an embodiment of the present disclosure may be applied to an allocated device in a network that has been assigned a local MAC address. The process can include:

S201: The allocated device receives a registration message sent by the device to be allocated.

The registration message may be sent to the entire network by the device to be allocated that needs to be assigned a local MAC address in the network. The registration message may include: a message identifier for uniquely identifying the registration message, and a MAC to be allocated that needs to be registered by the device to be allocated. Address block.

S202: The allocated device performs collision detection on the MAC address block to be allocated in the registration message and its local MAC address.

It should be noted that, since the local MAC address is the only MAC address in the entire network, the device in the network has only one corresponding local MAC address in the entire network. When the MAC address to be allocated in the registration message is not used by all the allocated devices in the network, it indicates that the device to be allocated is capable of using the MAC address to be allocated in the registration message; when the MAC address to be allocated in the registration message has been used in the network When the allocated device is used, it indicates that the MAC address to be allocated in the registration message conflicts with the used MAC address, so the device to be allocated cannot use the MAC address to be allocated in the registration message, and the MAC address to be allocated needs to be reselected. . Therefore, the assigned device has the following two results for collision detection:

S203: When a conflict occurs, the allocated device sends a conflict failure message to the device to be allocated;

It should be noted that the conflict failure message may include a message identifier for uniquely identifying the conflict failure message and a MAC address block in which the conflict occurs.

It can be understood that the message identifier in the conflict failure message can have a corresponding relationship with the message identifier in the registration message, so that the registration message for the conflict failure message can be obtained. In this embodiment, the corresponding relationship is preferably the conflict. The message identifier in the failure message is consistent with the message identifier in the registration message.

Exemplarily, when there is no conflict, the technical solution of the present process may further include: an allocated device termination registration message.

It can be understood that, after the device has been assigned the registration message, the device to be allocated will continue to send the declaration message without receiving the conflict failure message for the registration message, so that the device to be allocated will declare the MAC in the message to be declared. The address is the local MAC address of the device to be assigned itself.

The embodiment provides a method for allocating a local MAC address to an allocated device, and the allocated device receives the MAC address block to be allocated sent by the device to be allocated, and conflicts with the MAC address block to be allocated according to its own MAC address. Detecting, when a conflict occurs, feeding back a conflict failure message to the device to be allocated, and ending the registration of the device to be allocated when there is no conflict, realizing registration of the local MAC address and collision detection of the local MAC address, not only implemented in multiple network devices The local MAC address allocation protocol can also be adapted to different local network architectures.

Embodiment 3

Based on the same technical concept of the foregoing embodiment, referring to FIG. 3, a flow of a method for allocating a local MAC address according to an embodiment of the present disclosure is provided. The method may be applicable to a network device that performs forwarding in a network, and the process may include :

S301: The network device receives a registration message sent by the device to be allocated.

It should be noted that the registration message may include: a message identifier for uniquely identifying the registration message and a to-be-allocated MAC address block that needs to be registered.

S302: The network device determines, according to the preset forwarding policy, whether to forward the registration message to other network devices in the network other than the device to be allocated.

S303: When the network device receives the conflict failure message for the registration message, forwarding the conflict failure message to the device to be allocated.

It should be noted that the conflict failure message may include a message identifier for uniquely identifying the conflict failure message and a MAC address block in which the conflict occurs; generally, the message identifier setting of the conflict failure message may be consistent with the message identifier in the registration message. Therefore, the network device can query the correspondence established in step S301 according to the message identifier in the conflict failure message, so that the forwarding message can send the conflict failure message to the device to be allocated from the receiving port of the registration message.

S303: When the network device receives the declaration message, establish a forwarding mapping relationship according to the declaration message.

It should be noted that the abbreviated message includes a message identifier for uniquely identifying the affirmative message and a MAC address to be declared. Therefore, the network device can establish a forwarding mapping relationship between the receiving port that receives the abbreviated message and the MAC address to be declared in the adjacency message, and save the mapping relationship in a form of a forwarding entry. It can be understood that the network device usually has a forwarding table. After the new forwarding entry is established, the new forwarding entry can be updated with the existing forwarding table, so that the subsequent network device receives the MAC to be sent to the required forwarding. When the address of the packet is received, the forwarding table can be retrieved to query the corresponding sending port, and the packet is directly forwarded from the sending port, which reduces the broadcast sending packet.

For the technical solution shown in FIG. 3, optionally, the network device, according to the preset forwarding policy, determines whether to forward the registration message to other network devices other than the device to be allocated in the network, which may include :

When the network device is configured with the agent of the allocated device, the network device performs collision detection on the MAC address block to be allocated in the registration message and the local MAC address of the allocated device of the network device proxy;

When a conflict occurs, the network device sends a corresponding conflict failure message; and,

When there is no conflict, the network device forwards the registration message to other network devices other than the device to be allocated in the network.

It can be understood that after the network device sends the corresponding conflict failure message, the conflict failure message is finally received by the device to be allocated.

When the network device does not set a proxy for the device to be allocated, the network device forwards the registration message to other network devices other than the device to be allocated in the network.

For the above-mentioned alternative, the network device forwarding the registration message to other network devices other than the device to be allocated in the network may include:

After the network device obtains the receiving port for receiving the registration message, establishing a correspondence between the message identifier of the registration message and the receiving port;

The registration message is sent through a port other than the receiving port.

It can be understood that when the network device agent has other allocated devices, the behavior of the allocated device is first performed, that is, the collision detection is performed for the MAC address block to be allocated in the registration message, and the process of performing collision detection may be as in the second embodiment. The description of step S202 is not described in this embodiment. Moreover, after the network device sends a conflict failure message to the device to be allocated, the registration message is no longer forwarded. After receiving the abbreviated message, the network device with the proxy capability still needs to establish a forwarding mapping relationship according to the adjacency message, thereby retaining the MAC address that needs to be declared in the affirmative message.

Embodiment 4

During the implementation process, the MAC address registration message sent by the device to be allocated may not be sent to the allocated device or the network device in the network. When a database server for centrally managing MAC address allocation is set in the network, refer to FIG. A local media access control MAC address allocation method may include:

S401: The database server receives a registration message sent by the device to be allocated.

The registration message includes: a message identifier for uniquely identifying the registration message and a to-be-allocated MAC address block that needs to be registered;

For the step S401, when the device to be allocated sends the registration message to the database server, the device may send the unicast transmission to enable the database server to receive the registration message.

S402: The database server performs collision detection on the to-be-assigned MAC address and the saved MAC address:

The saved MAC address is a MAC address in a used state in the entire network;

S403: When a conflict occurs, the database server sends a conflict failure message to the to-be-distributed device;

The conflict failure message includes a message identifier for uniquely identifying the conflict failure message and a MAC address block in which a conflict occurs.

It should be noted that when there is no conflict, the database server does not respond to the registration message, which is terminated at the database server.

Illustratively, the method further includes:

And when the database server receives the affirmation message, save the MAC address that needs to be stated in the declaration message, and set the state of the MAC address that needs to be declared to the usage state; wherein the declaration message includes The message identifier identifying the affirmative message and the MAC address to be declared.

Understandably, after the database server saves and sets the MAC address to be declared in the declaration message to the usage state, the database server updates the saved MAC address, so that the subsequent saved MAC address can be used for conflict. Detection.

Embodiment 5

Based on the same technical concept of the foregoing embodiment, the present embodiment describes the technical solutions of the above three embodiments by a specific example. This embodiment is implemented by extending the MSRP (Multiple Stream Registration Protocol) protocol based on the MRP (Multiple Registration Protocol) protocol, and may be referred to as a Multi-MAC Assignment Protocol (MMAP). There are three types of messages that can be included in MMAP: MAC address registration message, MAC address conflict message, and MAC address declaration message. In addition, the three types of messages can be carried by MMAP data units (MMAPDUs, MMAP Data Units). In the MMAPDUs, the AttributeType field adds three values corresponding to the three types of messages; the VectorAttribute bytes in the AttributeList field can be defined as two types: The message identifies the messageID attribute and the MAC address attribute; wherein the messageID attribute contains a messageID for distinguishing different message messages. In this embodiment, a 48-bit MAC address start value plus a 16-bit random ID may be preferably used for representation; and a MAC address attribute includes a MAC address start value and a MAC address number.

The present embodiment is described based on the networking structure shown in FIG. 5. In FIG. 5, the device to be allocated is T; the allocated device is L; and the network device used for forwarding is B; it should be noted that when the network device is When a proxy is set, B can function as a T or L, and each device is connected through a local area network (LAN), as shown by the circle in FIG.

When the T needs to apply for a part of the MAC address, the MAC address registration message is sent; the AttributeList carried in the registration message is as shown in FIG. 6, including the messageID attribute and the MAC address attribute; wherein the MAC address attribute includes the MAC to be allocated that needs to be registered. Address space

After receiving the MAC address registration message, B saves the correspondence between the message ID in the MAC address registration message and the receiving port that receives the MAC address registration message, and forwards the MAC address registration message to other ports, and forwards it through B. Both will receive the MAC address registration message sent by T.

It can be understood that the foregoing sending process for the MAC address registration message is as shown in FIG. 7. In FIG. 7, the direction of the arrow is the direction of transmission of the MAC address registration message, and the edge of the arrow indicates the MAC address registration message, in the box of B. S indicates that B stores the correspondence between the messageID in the MAC address registration message and the receiving port that receives the MAC address registration message.

After receiving the MAC address registration message, L may check whether the MAC address to be allocated that needs to be registered conflicts with the MAC address of the device: if there is no conflict, the MAC address registration message is terminated; if the conflict occurs, the MAC address conflict is sent. The AttributeList carried in the MAC address conflict message, as shown in Figure 8, also carries the messageID attribute and the MAC address attribute, but the MAC address attribute at this time represents the conflicting MAC address space. Generally, the value of the messageID attribute in the MAC address conflict message is the same as the value of the messageID attribute in the MAC address registration message, so that the registration message for the conflict failure message can be characterized.

After receiving the MAC address conflict message, the B forwards the MAC address conflict message to T according to the message ID in the MAC address conflict message and the B save correspondence shown in FIG. 7.

It can be understood that the above-mentioned delivery process for the MAC address conflict message is as shown in FIG. 9. In FIG. 9, the arrow direction is the transmission direction of the MAC address conflict message, and the arrow C indicates the MAC address conflict message, in the box of B. The P indicates that the correspondence saved by B is saved.

The device can wait for the preset interval period to perform the sending of the MAC address registration message. After continuously sending the MAC address registration message several times, if no MAC address conflict message is received, the MAC address declaration message is sent to the entire network; After receiving the MAC address conflict message in this period, the new MAC address to be assigned needs to be re-selected and the MAC address registration message is resent. At this time, the message ID also changes with the reselected MAC address.

After receiving the MAC address declaration message, the network device B may establish a forwarding mapping relationship between the abbreviated MAC address and the receiving port according to the MAC address declared in the MAC address declaration message and the receiving port receiving the declaration message, and The forwarding mapping relationship is updated to B's own forwarding table. The save form can be: save the declared MAC address to the destination address, and save the receive port to the output port. Therefore, after receiving the packet to be sent to the abbreviated MAC address, the forwarding table can be searched to find the output port, and the packet is directly forwarded to the T, thereby reducing the sending of the packet by broadcast.

It can be understood that the above-mentioned delivery process for the MAC address declaration message is as shown in FIG. 10. In FIG. 10, the direction of the arrow is the transmission direction of the MAC address declaration message, and the A of the arrow indicates the MAC address declaration message.

Embodiment 6

On the basis of the fifth embodiment, in the present embodiment, the implementation process is performed by the agent with L set in B. In the case where the agent with L is set in B, the MAC of the proxy L is stored in B. The address, therefore, can be replied to the MAC address conflict message instead of the L being proxied. The implementation process of this embodiment is as follows:

After receiving the MAC address registration message, B stores the correspondence between the messageID in the MAC address registration message and the receiving port that receives the MAC address registration message. For B without the proxy, the MAC is processed according to the procedure shown in Figure 7. The address registration message is delivered, which is not described in this embodiment.

For B with proxy set, the behavior of L is executed first, namely:

The B set with the proxy detects whether the MAC address saved by itself is in conflict with the MAC address to be allocated that needs to be registered: if there is a conflict, B will send a MAC conflict message to the proxy L. Otherwise, the MAC address registration message is terminated and no forwarding is performed.

It can be understood that the schematic diagram of the B-sending MAC address conflict message set by the proxy is as shown in FIG. 11. In FIG. 11, the B provided with the proxy is shown by the shaded box, and the direction of the arrow is the B set with the proxy. The direction in which the sent MAC address conflict message is sent.

For the L that receives the MAC address registration message and the B that is not provided with the proxy, the implementation process of this embodiment is similar to that of the fourth embodiment, namely:

After receiving the MAC address conflict message, B forwards the MAC address conflict message to T according to the messageID in the MAC address conflict message and the B save correspondence shown in FIG. 7.

For a B that does not have a proxy, after receiving the MAC address declaration message, it can establish a forwarding mapping relationship between the declared MAC address and the receiving port according to the MAC address declared in the MAC address declaration message and the receiving port receiving the declaration message. And update the forwarding mapping relationship to B's own forwarding table. The save form can be: save the declared MAC address to the destination address, and save the receive port to the output port. Therefore, after receiving the packet to be sent to the abbreviated MAC address, the forwarding table can be searched to find the output port, and the packet is directly forwarded to the T, thereby reducing the sending of the packet by broadcast.

For a B device configured with a proxy L application, if a MAC address declaration message is received, the MAC address declared in the MAC address declaration message is saved.

For the L device, if it has not yet declared its own MAC address, when it receives the MAC address declaration message of other T, it also saves the MAC address in the MAC address declaration message, and needs to register as its own choice. The basis of the MAC address to be assigned to avoid conflicts.

For other Ts, when the MAC address to be assigned that the device needs to be registered is selected, when the MAC address registration message is sent, if other MAC address declaration messages sent by the T are received, other Ts need to be sent. The MAC address of the life in the MAC address declaration message is compared with the MAC address to be allocated that needs to be registered, and if there is a conflict, the MAC address to be allocated that needs to be registered needs to be re-selected, and the MAC address is restarted. The process of registering a message.

Example 7

For some lightweight devices, the MRP protocol may not be supported. In this embodiment, an Edge Control Protocol (ECP) protocol based on the Link Layer Discovery Protocol (LLDP) is used. The implementation process is the same as that in the fourth embodiment and the fifth embodiment. The content difference between the fifth embodiment and the sixth embodiment is that the message content in different messages is a type-length-value (TLV, Type-Length-Value). The form is carried in an LLDP data unit (LLDPDU, LLDP Data Unit). As shown in FIG. 12, the field TLV type indicates the type of the TLV. For the embodiment, three types of TLVs are defined, that is, TLV type=Register, indicating that it is used. The MAC address registration message; TLV type=Conflict, indicating that it is a MAC address conflict message; TLV type=Announce, indicating that it is a MAC address declaration message. The field TLV Length is the length of this TLV. The field TLV Value mainly includes two kinds of information: Message ID and MAC start address; for Message ID, it indicates the unique identifier of the message, and for the MAC start address, it indicates the start value of the MAC address block, which is different. The message type has a different meaning. If it is a registration message, it indicates a MAC address block that needs to be registered; if it is a conflict message, it indicates that the MAC address block has been used by other devices, there is a conflict, and a new MAC address block needs to be reselected; if it is a declaration message , indicating that the MAC address block is officially used by the device, and other devices cannot be used. The number of fields indicates the number of addresses in the address block.

Example eight

The technical solutions of the fifth embodiment and the sixth embodiment can also be implemented based on the Gratuitous ARP (Gratuitous Address Resolution Protocol). The implementation process is the same as that of the fourth embodiment and the fifth embodiment. The difference lies in the need for the existing free ARP. The message is extended. Therefore, the extended free ARP packet can be used to carry the message content in different messages. This embodiment provides a preferred extension to extend the gratuitous ARP packet, but is not limited to the extension. In a preferred extension, for the MAC address registration message, the following attribute values in the gratuitous ARP packet are set, and are set as:

Opcode=10, indicating that the type is a MAC address registration message;

Sender MAC: fill in the starting address of the MAC address block;

Sender IP: if there is one, if not, it is 0;

Destination MAC: fill in the last address of the MAC address block;

Destination IP: Fill in the same address as the Sender IP.

In a preferred extension, for the MAC address conflict message, the following attribute values in the gratuitous ARP packet are set and set to:

Opcode=11, indicating that the type is a MAC address conflict message;

Sender MAC: fill in the starting address of the conflicting MAC address block;

Sender IP: if there is one, if not, it is 0;

Destination MAC: fill in the last address of the conflicting MAC address block;

Destination IP: Fill in the same address as the Sender IP.

In a preferred extension, for the MAC address declaration message, the following attribute values in the gratuitous ARP packet are set, and are set as:

Opcode=12, indicating that the type is a MAC address declaration message;

Sender MAC: fill in the starting address of the declared MAC address block;

Sender IP: if there is one, if not, it is 0;

Destination MAC: fill in the last address of the declared MAC address block;

Destination IP: Fill in the same address as the Sender IP.

The advantage of implementing the above technical solution based on the free ARP is that it can be combined with the IP address. For the case where the device T to be allocated already has an IP address, the correspondence between the MAC address and the IP address can be directly established after the affirmation message.

It is to be understood that the implementations of the technical solutions of the first embodiment to the third embodiment are not limited to the specific embodiments of the disclosure.

Example nine

Based on the same technical concept of the foregoing embodiment, referring to FIG. 13, a device to be allocated 130 is provided, which includes: a first sending module 1301, a sensing module 1302, and a determining module. 1303; among them,

The first sending module 1301 is configured to send a registration message of a local media access control MAC address, where the registration message includes: a message identifier for uniquely identifying the registration message, and a MAC address block to be allocated that needs to be registered. ;

The sensing module 1302 is configured to detect any conflicts; and when no conflict is perceived, the determining module 1303 and the first sending module 1301 are triggered;

The determining module 1303 is configured to determine the MAC address block to be allocated as the MAC address of the device to be allocated;

The first sending module 1301 is further configured to send a declaration message of the MAC address, where the adjacency message includes: a message identifier for uniquely identifying the adjacency message and a to-be-allocated MAC address block that needs to be declared.

Illustratively, the sensing module 1302 is configured to: when the first sending module 1301 sends the registration message according to a preset interval, according to a preset interval, does not receive a conflict for the registration message. The message or the affirmation message of the address conflict is determined, and the MAC address conflict is not detected; wherein the conflict failure message includes: a message identifier for uniquely identifying the conflict failure message and a MAC address block in which the conflict occurs; The message identifier in the conflict failure message has a corresponding relationship with the message identifier in the registration message.

Illustratively, referring to FIG. 14, the to-be-distributed device 130 further includes a selection module 1304;

The sensing module 1302 is further configured to: when the conflict is perceived, trigger the selection module and the first sending module 1301;

The selecting module 1304 is configured to reselect a MAC address block to be allocated;

The first sending module 1301 is further configured to resend the registration message.

Referring to Figure 14, the to-be-distributed device 130 further includes a first receiving module 1305 and a first detecting module 1306;

The first receiving module 1305 is configured to receive a declaration message sent by another device;

The first detecting module 1306 is configured to detect, by using a MAC address that needs to be clarified in the affirmative message sent by the other device, with a MAC address block to be allocated that needs to be registered in the registration message, to determine whether a conflict occurs: if a conflict occurs. Activating the selection module; if no conflict occurs, the registration message is not processed;

The selecting module 1304 is further configured to reselect the MAC address block to be allocated, and replace the original MAC address block to be allocated in the registration message with the re-selected Mac address block to be allocated.

In addition, each functional module in this embodiment may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software function module.

The integrated unit may be stored in a computer readable storage medium if it is implemented in the form of a software function module and is not sold or used as a stand-alone product. Based on such understanding, the technical solution of the embodiment is essentially Said that the part contributing to the prior art or all or part of the technical solution can be embodied in the form of a software product stored in a storage medium, comprising a plurality of instructions for making a computer device (may It is a personal computer, a server, or a network device, etc. or a processor that performs all or part of the steps of the method described in this embodiment. The foregoing storage medium includes: a U disk, a mobile hard disk, a read only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes.

The computer program instructions corresponding to the local MAC address allocation method in this embodiment may be stored on a storage medium such as an optical disk, a hard disk, a USB disk, or the like, and a computer corresponding to a local MAC address allocation method in the storage medium. When the program instructions are read or executed by an electronic device, the following steps are included:

And sending a registration message of the local MAC address, where the registration message includes: a message identifier for uniquely identifying the registration message and a to-be-allocated MAC address block that needs to be registered;

Determining the MAC address block to be allocated as the MAC address of the device to be allocated, and sending a declaration message of the MAC address, wherein the abbreviated message includes: for uniquely identifying the affirmation The message identifier of the message and the block of MAC addresses to be allocated that need to be declared.

Optionally, the steps stored in the storage medium are: no conflicts are perceived, including:

After the registration message is sent according to the preset interval period according to the preset number of times, if the conflict failure message for the registration message or the declaration message that is verified as the address conflict is not received, it is determined that the MAC address to be allocated is not perceived. a conflicting message, where the conflicting failure message includes: a message identifier for uniquely identifying the conflict failure message and a MAC address block in which a conflict occurs; the message identifier in the conflict failure message and the message identifier in the registration message have Correspondence relationship.

Optionally, the step of storing in the storage medium: the method further comprises: when the conflict is perceived, reselecting the block of the MAC address to be allocated, and resending the registration message.

Optionally, the step of storing in the storage medium: the method further includes:

When receiving the affirmation message sent by the other device, the MAC address to be declared in the affirmation message sent by the other device is collided with the to-be-allocated MAC address block to be registered in the registration message to determine whether a conflict occurs:

If no conflict occurs, the registration message is not processed.

Optionally, the step of storing the MAC address to be allocated in the registration message is obtained by the device to be allocated according to a preset selection policy.

Example ten

Based on the same technical concept of the foregoing embodiment, referring to FIG. 15, a hardware structure of a device to be allocated 130 according to an embodiment of the present disclosure may be included, which may include: a first communication interface 1501, a first memory 1502, and a first process. And a first bus 1504; wherein

The first bus 1504 is configured to connect the first communication interface 1501, the first processor 1503, and the first memory 1502, and mutual communication between the devices;

The first communication interface 1501 is configured to perform data transmission with an external network element;

The first memory 1502 is configured to store instructions and data;

The first processor 1503 executes the instruction for: sending a registration message of a local MAC address; wherein the registration message includes: a message identifier for uniquely identifying the registration message and a MAC address to be allocated that needs to be registered Piece;

In a practical application, the first memory 1502 may be a volatile memory, such as a random access memory (RAM), or a non-volatile memory, such as only Read memory (ROM, Read-Only Memory), flash memory, hard disk (HDD, Hard Disk Drive) or solid state drive (SSD, Solid-State Drive); or a combination of the above types of memory, and A processor 1503 provides instructions and data.

The first processor 1503 may be an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), or a programmable logic device. At least one of (PLD, Programmable Logic Device), Field Programmable Gate Array (FPGA), Central Processing Unit (CPU), controller, microcontroller, and microprocessor. It is to be understood that, for different devices, the electronic device for implementing the functions of the first processor described above may also be other, and the embodiment of the present disclosure is not specifically limited.

Illustratively, the first processor 1503 may be configured to: when the registration message is sent according to a preset interval, according to a preset interval, does not receive a conflict failure message or verification for the registration message. Determining, by the adjacency message of the address conflict, that the MAC address conflict is not to be allocated; wherein the conflict failure message includes: a message identifier for uniquely identifying the conflict failure message and a MAC address block in which the conflict occurs; the conflict The message identifier in the failure message has a correspondence with the message identifier in the registration message.

Exemplarily, the first processor 1503 may be further configured to: when the conflict is perceived, reselect the block of the MAC address to be allocated, and resend the registration message.

Illustratively, the first processor 1503 may be further configured to: when receiving a declaration message sent by another device, request a MAC address that needs to be declared in the declaration message sent by the other device, and the registration message needs to be performed. Registered MAC address blocks to be allocated for collision detection to determine if a conflict occurs:

If no conflict occurs, the registration message is not processed.

For example, the to-be-allocated MAC address block that needs to be registered in the registration message is obtained by the device to be allocated according to a preset selection policy.

Embodiment 11

Based on the same technical concept of the foregoing embodiment, referring to FIG. 16 , an allocated device 160 according to an embodiment of the present disclosure is provided. The allocated device 160 includes: a second receiving module 1601, a second detecting module 1602, and a second sending module 1603; wherein

The second receiving module 1601 is configured to receive a registration message sent by the device to be allocated, where the registration message includes: a message identifier for uniquely identifying the registration message, and a to-be-allocated to be allocated by the device to be allocated. Media access control MAC address block;

The second detecting module 1602 is configured to perform collision detection between the MAC address block to be allocated in the registration message and the local MAC address of the registration message; when the conflict occurs, the second sending module 1603 is triggered;

The second sending module 1603 is configured to send a conflict failure message to the to-be-assigned device, where the conflict failure message includes a message identifier for uniquely identifying the conflict failure message and a MAC address block in which a conflict occurs.

Exemplarily, the message identifier in the conflict failure message has a corresponding relationship with the message identifier in the registration message.

And receiving, by the device to be allocated, a registration message, where the registration message includes: a message identifier for uniquely identifying the registration message, and a to-be-allocated MAC address block to be registered by the device to be allocated;

Performing collision detection on the MAC address block to be allocated in the registration message and its local MAC address;

When a conflict occurs, a conflict failure message is sent to the device to be allocated; wherein the conflict failure message includes a message identifier for uniquely identifying the conflict failure message and a MAC address block in which a collision occurs.

Optionally, the step of storing in the storage medium is: the message identifier in the conflict failure message has a corresponding relationship with the message identifier in the registration message.

Example twelve

Based on the same technical concept of the foregoing embodiment, referring to FIG. 17, a hardware structure of a distributed device 160 according to an embodiment of the present disclosure may be included, which may include: a second communication interface 1701, a second memory 1702, and a second process. 1703 and a second bus 1704; wherein

The second bus 1704 is configured to connect the second communication interface 1701, the second processor 1703, and the second memory 1702 and mutual communication between the devices;

The second communication interface 1701 is configured to perform data transmission with an external network element.

The second memory 1702 is configured to store instructions and data;

The second processor 1703 executes the instructions for:

Example thirteen

Based on the same technical concept of the foregoing embodiment, referring to FIG. 18, a network device 180 according to an embodiment of the present disclosure is provided. The network device 180 includes: a third receiving module 1801, a forwarding module 1802, and an establishing module 1803. among them,

The third receiving module 1801 is configured to receive a registration message sent by the device to be allocated, where the registration message includes: a message identifier for uniquely identifying the registration message, and a to-be-allocated to be allocated by the device to be allocated. Media access control MAC address block;

The forwarding module 1802 is configured to determine, according to a preset forwarding policy, whether to forward the registration message to another network device other than the device to be allocated in the network;

The third receiving module 1801 is configured to trigger the forwarding module 1802 when receiving a conflict failure message for the registration message, and trigger the establishing module 1803 when receiving the declaration message; wherein the conflict The failure message includes a message identifier for uniquely identifying the conflict failure message and a MAC address block in which the conflict occurs;

The forwarding module 1802 is further configured to forward the conflict failure message to the to-be-distributed device;

The establishing module 1803 is configured to establish a forwarding mapping relationship according to the adjacency message, where the adjacency message includes a message identifier for uniquely identifying the adjacency message and a MAC address that needs to be declared.

Illustratively, the forwarding module 1802 is configured to:

When the network device 180 is provided with a proxy of the allocated device, the MAC address block to be allocated in the registration message is collided with the MAC address of the allocated device proxyed by the network device 180:

And, when a conflict occurs, sending a corresponding conflict failure message,

And, when there is no conflict, the registration message is forwarded to other network devices other than the device to be allocated in the network.

Illustratively, the forwarding module 1802 is configured to:

When the network device 180 does not set a proxy for the device to be allocated, the registration message is forwarded to other network devices other than the device to be allocated in the network.

The forwarding device 180 is configured to acquire a correspondence between a message identifier of the registration message and the receiving port, after acquiring a receiving port for receiving a registration message;

The registration message is sent through a port other than the receiving port.

For example, the establishing module 1803 is configured to establish a forwarding mapping relationship between a receiving port that receives the aforesaid message and a MAC address that needs to be stated in the adjacency message.

Determining whether to forward the registration message to other network devices other than the device to be allocated in the network according to a preset forwarding policy;

Forwarding the conflict failure message to the device to be allocated when receiving a conflict failure message for the registration message; wherein the conflict failure message includes a message identifier for uniquely identifying the conflict failure message and appearing Conflicting MAC address block;

And when the affirmative message is received, the forwarding mapping relationship is established according to the adjacency message; wherein the adjacency message includes a message identifier for uniquely identifying the adjacency message and a MAC address that needs to be declared.

Optionally, the step of storing in the storage medium is: determining, according to the preset forwarding policy, whether to forward the registration message to other network devices other than the device to be allocated in the network, including:

When the network device is provided with a proxy of the allocated device, the MAC address block to be allocated in the registration message is collided with the MAC address of the allocated device of the network device proxy:

When a conflict occurs, a corresponding conflict failure message is sent,

When no conflict occurs, the registration message is forwarded to other network devices other than the device to be allocated in the network.

When the network device does not set a proxy for the device to be allocated, the registration message is forwarded to other network devices other than the device to be allocated in the network.

Optionally, the storing step in the storage medium: forwarding the registration message to other network devices other than the device to be allocated in the network, including:

After obtaining the receiving port for receiving the registration message, establishing a correspondence between the message identifier of the registration message and the receiving port;

The registration message is sent through a port other than the receiving port.

Optionally, the step of storing the forwarding in the storage medium: the establishing a forwarding mapping relationship according to the adjacency message, including:

And establishing a forwarding mapping relationship between the receiving port that receives the claim message and the MAC address declared in the declaration message.

Embodiment 14

Based on the same technical concept of the foregoing embodiment, referring to FIG. 19, which shows a hardware structure of a network device 180 according to an embodiment of the present disclosure, which may include: a third communication interface 1901, a third memory 1902, and a third processor. 1903 and a third bus 1904; wherein

The third bus 1904 is configured to connect the third communication interface 1901, the third processor 1903, and the third memory 1902 and mutual communication between the devices;

The third communication interface 1901 is configured to perform data transmission with an external network element.

The third memory 1902 is configured to store instructions and data;

The third processor 1903 executes the instructions for:

Forwarding the conflict failure message to the device to be allocated when receiving a conflict failure message for the registration message; wherein the conflict failure message includes a message identifier for uniquely identifying the conflict failure message and appearing Conflicting MAC address block; and,

Illustratively, the third processor 1903 is configured to: when the network device is configured with a proxy of the allocated device, allocate the to-be-assigned MAC address block in the registration message to the network device proxy. The device's MAC address is used for collision detection:

When a conflict occurs, a corresponding conflict failure message is sent,

Illustratively, the third processor 1903 is configured to: when the network device does not set an agent of the distribution device, forward the registration message to other network devices other than the device to be allocated in the network.

The third processor 1903 is configured to:

The registration message is sent through a port other than the receiving port.

Illustratively, the third processor 1903 is configured to:

And establishing a forwarding mapping relationship between the receiving port that receives the aforesaid message and the MAC address that needs to be stated in the adjacency message.

Example fifteen

Based on the same technical concept of the foregoing embodiment, referring to FIG. 20, a structure of a database server 200 according to an embodiment of the present disclosure is provided. The database server 200 includes: a fourth receiving module 2001, a third detecting module 2002, and a third sending module 2003, wherein

The fourth receiving module 2001 is configured to receive a registration message sent by the device to be allocated, where the registration message includes: a message identifier for uniquely identifying the registration message and a to-be-allocated MAC address block that needs to be registered;

The third detecting module 2002 is configured to perform collision detection on the to-be-assigned MAC address and the saved MAC address, where the saved MAC address is a MAC address in a used state in the entire network;

And, when a conflict occurs, triggering the third sending module 2003;

The third sending module 2003 is configured to send a conflict failure message to the to-be-distributed device, where the conflict failure message includes a message identifier for uniquely identifying the conflict failure message and a MAC address block in which a conflict occurs.

Illustratively, referring to FIG. 21, the database server 200 further includes: a saving module 2004, configured to save, when the fourth receiving module 2001 receives the affirmation message, a MAC address that needs to be stated in the declaration message, and Setting the status of the MAC address to be declared to a usage status; wherein the declaration message includes a message identifier for uniquely identifying the adjacency message and a MAC address that needs to be declared.

Receiving a registration message sent by the device to be allocated; wherein the registration message includes: a message identifier for uniquely identifying the registration message and a to-be-allocated MAC address block that needs to be registered;

Performing collision detection on the to-be-assigned MAC address and the saved MAC address: wherein the saved MAC address is a MAC address in a used state in the entire network;

And when the database server receives the affirmation message, save the MAC address that needs to be stated in the declaration message, and set the state of the MAC address that needs to be declared to the usage state; wherein the declaration message includes A message identifier that uniquely identifies the affirmative message and a MAC address that needs to be declared.

Example sixteen

Based on the same technical concept of the foregoing embodiment, referring to FIG. 22, the hardware structure of the database server 200 provided by the embodiment of the present disclosure may include: a fourth communication interface 2201, a fourth memory 2202, and a fourth processor. 2203 and a fourth bus 2204; wherein

The fourth bus 2204 is configured to connect the fourth communication interface 2201, the fourth processor 2203, and the fourth memory 2202 and mutual communication between the devices;

The fourth communication interface 2201 is configured to perform data transmission with an external network element;

The fourth memory 2202 is configured to store instructions and data;

The fourth processor 2203 executes the instructions for:

In a practical application, the fourth memory 2202 may be a volatile memory, such as a random access memory (RAM), or a non-volatile memory, such as only Read memory (ROM, Read-Only Memory), flash memory, hard disk (HDD, Hard Disk Drive) or solid state drive (SSD, Solid-State Drive); or a combination of the above types of memory, and The four processor 2203 provides instructions and data.

The fourth processor 2203 may be an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), or a programmable logic device. At least one of (PLD, Programmable Logic Device), Field Programmable Gate Array (FPGA), Central Processing Unit (CPU), controller, microcontroller, and microprocessor. It is to be understood that the electronic device for implementing the fourth processor function described above may be other for different devices, and is not specifically limited in the embodiment of the present disclosure.

Illustratively, the fourth processor 2203 is further configured to:

And when the affirmative message is received, save the MAC address that needs to be stated in the affirmative message, and set the state of the MAC address that needs to be declared to the use state; wherein the abbreviated message includes the identifier for The message identifier of the affirmation message and the MAC address that needs to be declared.

Example seventeen

Based on the same technical concept of the foregoing embodiment, referring to FIG. 23, a distribution system 230 for a local MAC address provided by an embodiment of the present disclosure is provided. The system 230 includes at least one device to be allocated 130 and at least one allocated device. 160 and at least one network device 180; wherein

The device to be allocated 130 is configured to send a registration message of a local MAC address, where the registration message includes: a message identifier for uniquely identifying the registration message and a to-be-allocated MAC address block that needs to be registered;

And determining, when the device to be allocated 130 does not detect any conflict, determining the MAC address block to be allocated as the MAC address of the device to be allocated 130, and sending a declaration message of the MAC address; wherein the abbreviated message The method includes: a message identifier for uniquely identifying the abbreviated message; and a MAC address block to be allocated that needs to be declared;

The allocated device 180 is configured to receive the registration message sent by the to-be-distributed device 130. The registration message includes: a message identifier for uniquely identifying the registration message, and the device to be allocated 130 needs to be registered. The block of MAC addresses to be allocated;

And performing collision detection on the MAC address block to be allocated in the registration message and its local MAC address;

And, when a conflict occurs, sending a conflict failure message to the to-be-allocated device 130; wherein the conflict failure message includes a message identifier for uniquely identifying the conflict failure message and a MAC address block in which a conflict occurs;

The network device 180 is configured to receive a registration message sent by the to-be-distributed device 130, where the registration message includes: a message identifier for uniquely identifying the registration message, and the device to be allocated 130 needs to be registered. The MAC address block to be allocated;

And determining, according to the preset forwarding policy, whether to forward the registration message to other network devices other than the device to be allocated 130 in the network;

And, when receiving the conflict failure message for the registration message, forwarding the conflict failure message to the to-be-allocated device 130; wherein the conflict failure message includes a message for uniquely identifying the conflict failure message Identification and a block of MAC addresses that have conflicts;

And, when the affirmative message is received, establishing a forwarding mapping relationship according to the adjacency message; wherein the adjacency message includes a message identifier for uniquely identifying the adjacency message and a MAC address that needs to be declared.

Example 18

Based on the same technical concept of the foregoing embodiment, referring to FIG. 24, a local MAC address allocation system 240 according to an embodiment of the present disclosure is provided. The system 240 includes: at least one to-be-distributed device 130, at least one database server. 200 and at least one network device 180; wherein

The database server 200 is configured to receive a registration message sent by the device to be allocated 130, where the registration message includes: a message identifier for uniquely identifying the registration message and a to-be-allocated MAC address block that needs to be registered;

And detecting, by the MAC address to be allocated, a saved MAC address, where the saved MAC address is a MAC address in a used state in the entire network;

And determining, according to a preset forwarding policy, whether to forward the registration message to other network devices 180 other than the device to be allocated 130 in the network;

Those skilled in the art will appreciate that embodiments of the present disclosure can be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware aspects. Moreover, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.

The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present disclosure. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

The above description is only for the preferred embodiments of the present disclosure, and is not intended to limit the scope of the disclosure.

Industrial applicability

The method, device, and system for allocating the local media access control address of the present disclosure send the to-be-allocated address block to the network device of the entire network through the device to be allocated, and declare the self-use according to the feedback of the other network device of the entire network for the address block to be allocated. The address realizes the registration of the local address and the collision detection of the local address, not only realizing the local address allocation protocol in multiple network devices, but also adapting to different local network architectures.

Claims

A method for allocating a local media access control address, the method comprising:

The registration message of the local address is sent by the device to be allocated; wherein the registration message includes: a message identifier for uniquely identifying the registration message and an address block to be allocated that needs to be registered;

And determining, by the device to be allocated, the address to be allocated as the address of the device to be allocated, and sending a declaration message of the address; wherein the declaration message includes: The message identifier of the abbreviated message and the block of the address to be allocated that need to be declared.
The method of claim 1, wherein the device to be distributed does not perceive any conflicts, including:

Determining, after the device to be allocated sends the registration message according to a preset interval period according to a preset number of times, without receiving a conflict failure message for the registration message or a declaration message that is verified as an address conflict. The device to be allocated does not perceive an address block conflict to be allocated; wherein the conflict failure message includes: a message identifier for uniquely identifying the conflict failure message and an address block in which a conflict occurs; and a message identifier in the conflict failure message The message identifier in the registration message has a corresponding relationship.
The method of claim 1, wherein the method further comprises: when the device to be allocated senses a conflict, the device to be allocated reselects an address block to be allocated and resends the registration message.
The method of claim 1 wherein the method further comprises:

When the device to be allocated receives the declaration message sent by the other device, the address block that needs to be declared in the declaration message sent by the other device is collided with the to-be-allocated address block that needs to be registered in the registration message, and is determined. Whether there is a conflict:

If a conflict occurs, the address block to be allocated is re-selected, and the original address block to be allocated that needs to be registered in the registration message is replaced with the re-selected address block to be allocated;

If there is no conflict, it will not be processed.
The method according to claim 1, wherein the to-be-allocated address block that needs to be registered in the registration message is obtained by the device to be allocated according to a preset selection policy.
A method for allocating a local media access control address, the method comprising:

The allocated device receives the registration message sent by the device to be allocated; wherein the registration message includes: a message identifier for uniquely identifying the registration message and an address block to be allocated that the device to be allocated needs to register;

The allocated device performs collision detection on the to-be-allocated address block in the registration message and its own local address;

When a conflict occurs, the allocated device sends a conflict failure message to the to-be-allocated device; wherein the conflict failure message includes a message identifier for uniquely identifying the conflict failure message and an address block in which a conflict occurs.
The method of claim 6, wherein the message identifier in the conflict failure message has a corresponding relationship with the message identifier in the registration message.
A method for allocating a local media access control address, the method comprising:

The network device receives the registration message sent by the device to be allocated, where the registration message includes: a message identifier for uniquely identifying the registration message and an address block to be allocated that the device to be allocated needs to register;

Determining, by the network device, whether the registration message is forwarded to other network devices other than the device to be allocated in the network according to a preset forwarding policy;

And when the network device receives the conflict failure message for the registration message, forwarding the conflict failure message to the device to be allocated; wherein the conflict failure message includes a message for uniquely identifying the conflict failure message. The message identifier and the address block where the conflict occurred;

And when the network device receives the adjacency message, establishing a forwarding mapping relationship according to the adjacency message; wherein the adjacency message includes a message identifier for uniquely identifying the adjacency message and an address to be declared.
The method of claim 8, wherein the network device determines whether to forward the registration message to other network devices other than the device to be allocated in the network according to a preset forwarding policy, including:

When the network device is provided with an agent of the allocated device, the network device performs collision detection on the address block to be allocated in the registration message and the address of the allocated device of the network device proxy:

When a conflict occurs, the network device sends a corresponding conflict failure message;

When no conflict occurs, the network device forwards the registration message to other network devices other than the device to be allocated in the network.
The method of claim 8, wherein the network device determines whether to forward the registration message to other network devices other than the device to be allocated in the network according to a preset forwarding policy, including:

When the network device does not set an agent of the allocated device, the network device forwards the registration message to other network devices other than the device to be allocated in the network.
The method according to claim 9 or 10, wherein the network device forwards the registration message to other network devices other than the device to be allocated in the network, including:

After the network device acquires the receiving port for receiving the registration message, establishing a correspondence between the message identifier of the registration message and the receiving port;

The registration message is sent through a port other than the receiving port.
The method of claim 8, wherein the establishing a forwarding mapping relationship according to the adjacency message comprises:

The network device establishes a forwarding mapping relationship between a receiving port that receives the aforesaid message and an address declared in the affirmative message.
A method for allocating a local media access control address, the method comprising:

The database server receives the registration message sent by the device to be allocated, where the registration message includes: a message identifier for uniquely identifying the registration message and an address block to be allocated that needs to be registered;

The database server performs collision detection on the to-be-allocated address block and the saved address: wherein the saved address is an address in a usage state in the entire network;

When a conflict occurs, the database server sends a conflict failure message to the device to be allocated; wherein the conflict failure message includes a message identifier for uniquely identifying the conflict failure message and an address block in which a conflict occurs.
The method of claim 12, wherein the method further comprises:

And when the database server receives the affirmation message, save the address that needs to be stated in the declaration message, and set the state of the address to be stated to the usage state; wherein the declaration message includes a unique identifier The message identifier of the affirmative message and the address to be declared.
A device to be allocated, the device to be allocated includes: a first sending module, a sensing module, and a determining module; wherein

The first sending module is configured to send a registration message of the local media access control address, where the registration message includes: a message identifier for uniquely identifying the registration message and an address block to be allocated that needs to be registered;

The sensing module is configured to detect a conflict; and when no conflict is perceived, the determining module and the first sending module are triggered;

The determining module is configured to determine the address block to be allocated as an address of the device to be allocated;

The first sending module is further configured to send a declaration message of the address, where the adjacency message includes: a message identifier for uniquely identifying the adjacency message and an address block to be allocated that needs to be declared.
The device to be allocated according to claim 15, wherein the sensing module is configured to: after the first sending module sends the registration message according to a preset interval, according to a preset number of times, Determining, by the conflicting failure message of the registration message or the affirmation message of the address conflict, determining that the address block conflict to be allocated is not detected; wherein the conflict failure message includes: a message identifier for uniquely identifying the conflict failure message and A conflicting address block occurs; the message identifier in the conflict failure message has a corresponding relationship with the message identifier in the registration message.
The device to be dispensed according to claim 15, wherein the device to be distributed further comprises a selection module;

The sensing module is further configured to trigger the selection module and the first sending module when a conflict is perceived;

The selection module is configured to reselect an address block to be allocated;

The first sending module is further configured to resend the registration message.
The device to be distributed according to claim 17, wherein the device to be distributed further comprises a first receiving module and a first detecting module;

The first receiving module is configured to receive a declaration message sent by another device;

The first detecting module is configured to detect, in the declaration message sent by the other device, the address block that needs to be declared, and the to-be-allocated address block that needs to be registered in the registration message, to determine whether a conflict occurs: if a conflict occurs, Triggering the selection module; if no conflict occurs, no processing is performed;

The selecting module is further configured to reselect the to-be-allocated address block, and replace the original to-be-allocated address block that needs to be registered in the registration message with the re-selected address block to be allocated.
An allocated device, the allocated device includes: a second receiving module, a second detecting module, and a second sending module; wherein

The second receiving module is configured to receive a registration message sent by the device to be allocated, where the registration message includes: a message identifier for uniquely identifying the registration message, and an address to be allocated that needs to be registered by the device to be allocated Piece;

The second detecting module is configured to detect a conflict between the to-be-assigned address block and the local address of the registration message, and trigger the second sending module when a conflict occurs;

The second sending module is configured to send a conflict failure message to the to-be-distributed device; wherein the conflict failure message includes a message identifier for uniquely identifying the conflict failure message and an address block in which a conflict occurs.
The allocated device according to claim 19, wherein the message identifier in the conflict failure message has a corresponding relationship with the message identifier in the registration message.
A network device, where the network device includes: a third receiving module, a forwarding module, and an establishing module;

The third receiving module is configured to receive a registration message sent by the device to be allocated, where the registration message includes: a message identifier for uniquely identifying the registration message, and an address to be allocated that needs to be registered by the device to be allocated Piece;

The forwarding module is configured to: determine, according to a preset forwarding policy, whether to forward the registration message to another network device other than the device to be allocated in the network;

The third receiving module is configured to trigger the forwarding module when receiving a conflict failure message for the registration message, and trigger the establishing module when receiving the declaration message; wherein the conflict failure message includes a message identifier for uniquely identifying the conflict failure message and an address block in which a conflict occurs;

The forwarding module is further configured to forward the conflict failure message to the to-be-distributed device;

The establishing module is configured to establish a forwarding mapping relationship according to the adjacency message; wherein the adjacency message includes a message identifier for uniquely identifying the adjacency message and an address to be declared.
The network device according to claim 21, wherein the forwarding module is configured to:

When the network device is provided with a proxy of the allocated device, the address block to be allocated in the registration message is detected by conflict with the address of the allocated device of the network device proxy:

And, when a conflict occurs, sending a corresponding conflict failure message,

And, when there is no conflict, the registration message is forwarded to other network devices other than the device to be allocated in the network.
The network device according to claim 21, wherein the forwarding module is configured to: when the network device does not set an agent of the allocated device, forward the registration message to the network other than the device to be allocated Other network devices.
The network device according to claim 22 or 23, wherein the forwarding module is configured to:

After obtaining the receiving port for receiving the registration message, establishing a correspondence between the message identifier of the registration message and the receiving port; and

The registration message is sent through a port other than the receiving port.
The network device according to claim 21, wherein the establishing module is configured to establish a forwarding mapping relationship between a receiving port that receives the affirmative message and an address that needs to be stated in the affirmative message.
A database server, the database server includes: a fourth receiving module, a third detecting module, and a third sending module, where

The fourth receiving module is configured to receive a registration message sent by the device to be allocated, where the registration message includes: a message identifier for uniquely identifying the registration message and an address block to be allocated that needs to be registered;

The third detecting module is configured to perform collision detection on the to-be-allocated address block and the saved address: wherein the saved address is an address in a used state in the entire network;

And, when a conflict occurs, triggering the third sending module;

The third sending module is configured to send a conflict failure message to the to-be-allocated device; wherein the conflict failure message includes a message identifier for uniquely identifying the conflict failure message and an address block in which a conflict occurs.
The database server according to claim 26, wherein the database server further comprises: a saving module, configured to save an address to be declared in the declaration message when the fourth receiving module receives the declaration message, and Setting a status of the address to be declared to a usage status; wherein the affirmation message includes a message identifier for uniquely identifying the affirmative message and an address to be declared.
A local media access control address allocation system, wherein the system includes at least one device to be allocated, at least one allocated device, and at least one network device;

The device to be allocated is configured to send a registration message of a local address, where the registration message includes: a message identifier for uniquely identifying the registration message and an address block to be allocated that needs to be registered;

And when the device to be allocated does not detect any conflict, determining the to-be-allocated address block as the address of the device to be allocated, and sending a declaration message of the address; wherein the affirmative message includes: Identifying a message identifier of the abbreviated message and an address block to be allocated that needs to be declared;

The allocated device is configured to receive a registration message sent by the device to be allocated, where the registration message includes: a message identifier for uniquely identifying the registration message, and a to-be-allocated to be allocated by the device to be allocated Address block

And detecting collision of the to-be-allocated address block in the registration message with its own local address;

And sending a conflict failure message to the to-be-allocated device when a conflict occurs; wherein the conflict failure message includes a message identifier for uniquely identifying the conflict failure message and an address block in which a conflict occurs;

The network device is configured to receive a registration message sent by the device to be allocated, where the registration message includes: a message identifier for uniquely identifying the registration message, and an address to be allocated that needs to be registered by the device to be allocated Piece;

And determining, according to the preset forwarding policy, whether to forward the registration message to other network devices other than the device to be allocated in the network;

And, when receiving the conflict failure message for the registration message, forwarding the conflict failure message to the device to be allocated; wherein the conflict failure message includes a message identifier for uniquely identifying the conflict failure message And a block of addresses that have conflicts;

And, when receiving the affirmative message, establishing a forwarding mapping relationship according to the adjacency message; wherein the adjacency message includes a message identifier for uniquely identifying the affirmative message and an address that needs to be declared.
A local media access control address allocation system, the system comprising at least one device to be allocated, at least one database server, and at least one network device;

The device to be allocated is configured to send a registration message of a local address, where the registration message includes: a message identifier for uniquely identifying the registration message and an address block to be allocated that needs to be registered;

And when the device to be allocated does not detect any conflict, determining the to-be-allocated address block as the address of the device to be allocated, and sending a declaration message of the address; wherein the affirmative message includes: Identifying a message identifier of the abbreviated message and an address block to be allocated that needs to be declared;

The database server is configured to receive a registration message sent by the device to be allocated, where the registration message includes: a message identifier for uniquely identifying the registration message and an address block to be allocated that needs to be registered;

And detecting the conflict between the to-be-assigned address and the saved address: wherein the saved address is an address in a usage state in the entire network;

And sending a conflict failure message to the to-be-allocated device when a conflict occurs; wherein the conflict failure message includes a message identifier for uniquely identifying the conflict failure message and an address block in which a conflict occurs;

The network device is configured to receive a registration message sent by the device to be allocated, where the registration message includes: a message identifier for uniquely identifying the registration message, and an address to be allocated that needs to be registered by the device to be allocated Piece;

And determining, according to the preset forwarding policy, whether to forward the registration message to other network devices other than the device to be allocated in the network;

And, when receiving the conflict failure message for the registration message, forwarding the conflict failure message to the device to be allocated; wherein the conflict failure message includes a message identifier for uniquely identifying the conflict failure message And a block of addresses that have conflicts;

And, when receiving the affirmative message, establishing a forwarding mapping relationship according to the adjacency message; wherein the adjacency message includes a message identifier for uniquely identifying the affirmative message and an address that needs to be declared.