WO2016101525A1 - Method, apparatus and system for managing optical network unit dpu device - Google Patents

Abstract

Disclosed are a method, apparatus and system for managing an optical network unit DPU device. The method comprises: establish a specific service bearer channel between an optical line terminal (OLT) and an optical network unit DPU; a permanent management agent (PMA) of the OLT receives a NETCONF configuration packet from a configuration server, and sends a management packet of a managed object to the DPU by means of the specific service bearer channel; terminate the specific service bearer channel by means of the OLT and an optical network unit (ONU) that is an adjacent device of the OLT, the OLT and the ONU extract the NET-CONF packet into a device management CPU, and the OLT and the ONU establish a transparent channel for bearing the NET-CONF protocol. Therefore, the problems that the optical network unit DPU device is high in management complexity and poor in extensibility are solved, the management complexity is lowered, the extensibility is improved and the maintenance cost is reduced.

Description

Optical network unit DPU device management method, device and system Technical field

The present invention relates to the field of communications, and in particular, to a method, device, and system for managing an optical network unit DPU device.

Background technique

A device of a distribution point unit (DPU) refers to a device that is placed at a node of a distribution point (DP). The network side is a Passive Optical Network (xPON)/Ethernet uplink port, and the user side is a VDSL2/G.FAST Digital Subscriber Line (DSL) interface. In related technologies, currently The DPU device management model adopts the network configuration NETCONF protocol, which generally carries the IP protocol. If the uplink device is an OLT, the Permanent Management Agen (PMA) can be placed on the OLT device, even the OLT and the Optical Network Unit (Optical Network Unit). It is referred to as ONU. It is an adjacent device. If IP bearer is still used, IP addresses need to be configured on both the OLT and the DPU. This involves IP address allocation and management issues, which brings complexity in network management and increases DPU. The complexity of the device.

The current management mode is the management method of the IP address. Figure 1 is a schematic diagram of the manner in which the IP address is used to manage the DPU device in the related art. As shown in Figure 1, the customer premises equipment (Customer Premise Equipment, CPE for short) is used. The disadvantage of this method is that each DPU needs to be assigned an IP address, IP address allocation, identification and management is very complicated, and the opening and maintenance workload is huge.

Another way is to use a dedicated optical network when using technologies such as GPON (GPONGigabit-Capable PON)/XG-PON1 (10,000 Gigabit Passive Optical Network) between the OLT and the DPU. The management and control interface (OMCI) is a protocol for information exchange between the OLT and the ONT defined in the GPON standard. The channel is used to carry NETCONF packets. This channel is used for configuration between the OLT and the ONU. FIG. 2 is a schematic diagram of an OMCI management channel between an OLT and an ONU in the related art, and FIG. 3 is a schematic diagram of a NETCONF over OMCI management mode in the related art, as shown in FIG. 2 and FIG. 3. The implementation scheme based on this channel is NETCONF over OMCI. This function uses the underlying PON mechanism. It can implement OLT and ONU configuration management and ONU alarm notification without configuring an IP address. However, in this OMCI channel, the maximum byte size of each OMCI message is less than 53. Bytes, if NETCONF messages are carried by OMCI, then NETCONF message fragmentation and reassembly are involved, and the scalability is very poor.

For the related art, for the problem that the optical network unit DPU device has high complexity and poor scalability, an effective solution has not been proposed.

Summary of the invention

The invention provides a method, device and system for managing an optical network unit DPU device to solve at least the above problems.

According to an embodiment of the present invention, a method for managing an optical network unit DPU device includes: establishing a specific service bearer channel between an optical line terminal OLT and an optical network unit DPU; and receiving, by the persistent manager proxy PMA of the OLT, Configuring a NETCONF configuration packet of the server, and sending the management packet of the management object to the DPU through the specific service bearer channel, where the DPU parses the management packet of the management packet of the NETCONF, and configures the Related parameters of the DPU.

Further, the specific service bearer channel includes one of the following: a GPON encapsulation mode GEM channel of a Gigabit passive optical network GPON, a logical link mark LLID channel of an EPON of an Ethernet passive optical network, and a virtual local area network VLAN of an Ethernet aisle.

Further, in a case where the specific service bearer channel is a GPON encapsulation mode GEM channel of a Gigabit passive optical network GPON, the NET-CONF packet is carried on the GEM frame.

Further, in the case that the specific service bearer channel is an Ethernet virtual LAN VLAN channel, the addressing manner of establishing a specific service bearer channel between the optical line terminal OLT and the optical network unit DPU includes one of the following: in the VLAN ID and The DPU is a one-to-one correspondence, and one of the VLANs has multiple DPU devices, which are identified and distinguished according to the MAC address of the DPU device. In the case of a VLAN bearer, the source MAC address of the packet is the device. The MAC address and the destination MAC address are transmitted by using the broadcast address when the peer MAC address is not known. When the MAC address of the other party is obtained, the peer MAC address is filled.

Further, the permanent manager proxy PMA of the OLT receives the NETCONF configuration packet from the configuration server, and the PMA uses an IP address to connect with the network management server, and the upper layer protocol of the connection is received by the northbound interface. Including: network configuration protocol NET-CONF, simple network management protocol SNMP, human-machine exchange protocol TL1.

According to another embodiment of the present invention, there is also provided an optical network unit DPU device management apparatus, including: an establishing device, configured to establish a specific service bearer channel between an optical line terminal OLT and an optical network unit DPU; The device is configured to receive the NET-CONF configuration message from the configuration server, and the management object of the management object is sent to the DPU through the specific service bearer channel, where The DPU performs the analysis of the management data of the NET-CONF by the DPU, and configures related parameters of the DPU; the transmission device is configured to be the OLT and the OLT adjacent device optical network unit ONU through the specific service. The bearer channel passes the NET-CONF message.

Further, the establishing device comprises: a first channel unit, a GPON encapsulation mode GEM channel of a Gigabit passive optical network GPON; a second channel unit, an Ethernet link passive optical network EPON logical link label LLID channel; a third channel Unit, Ethernet virtual LAN VLAN channel.

Further, the first channel unit is configured to be in a GPON encapsulation mode GEM channel in which the specific service bearer channel is a Gigabit passive optical network GPON, and the NET-CONF packet is carried on the GEM frame.

Further, in the case that the third channel unit is configured as the virtual local area network (VLAN) VLAN channel of the specific service bearer channel, the addressing manner of establishing a specific service bearer channel between the optical line terminal OLT and the optical network unit DPU includes the following One of the following: in the case that the VLAN ID and the DPU are in one-to-one correspondence, and one of the VLANs has multiple DPU devices, and is identified and distinguished according to the MAC address of the DPU device; The source MAC address of the packet is the MAC address of the device. The destination MAC address is sent by the broadcast address when the peer MAC address is not known. If the MAC address of the peer is obtained, the peer MAC address is filled.

Further, the device further includes: an interface device, configured to connect to the network management server by using an IP address, where the upper layer protocol of the connection includes: network configuration protocol NET-CONF, simple network management Protocol SNMP, Human Machine Exchange Protocol TL1.

According to still another embodiment of the present invention, there is provided an optical network unit DPU device management system, comprising: the device according to any one of the preceding claims.

According to the present invention, a specific service bearer channel is established between the optical line terminal OLT and the optical network unit DPU; the permanent manager proxy PMA of the OLT receives the NETCONF configuration message from the configuration server, and the management object of the management object passes the specific The service bearer channel is sent to the DPU, where the DPU parses the management data of the NETCONF, and configures the relevant parameters of the DPU; and terminates the specific service bearer by using the OLT and the OLT adjacent device optical network unit ONU. The OLT and the ONU respectively extract the NET-CONF message to the device management CPU, and the OLT and the ONU establish a transparent channel for carrying the NET-CONF protocol, which solves the high complexity of the optical network unit DPU device management. The problem of poor scalability reduces management complexity, increases scalability, and reduces maintenance costs.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a schematic diagram of a manner of managing a DPU device by using an IP address in the related art;

2 is a schematic diagram of an OMCI management channel between an OLT and an ONU in the related art;

3 is a schematic diagram of a NETCONF over OMCI management method in the related art;

4 is a flowchart of a method for managing an optical network unit DPU device according to an embodiment of the present invention;

FIG. 5 is a structural block diagram of an optical network unit DPU device management apparatus according to an embodiment of the present invention; FIG.

6 is a schematic diagram of a NETCONF over GEM/LLID/VLAN management manner in accordance with a preferred embodiment of the present invention.

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

In this embodiment, a method for managing an optical network unit DPU device is provided. FIG. 4 is a flowchart of a method for managing an optical network unit DPU device according to an embodiment of the present invention. As shown in FIG. 4, the process includes the following steps. :

Step S402, establishing a specific service bearer channel between the optical line terminal OLT and the optical network unit DPU;

Step S404, the permanent manager proxy PMA of the OLT receives the NETCONF configuration packet from the configuration server, and sends the management object of the management object to the DPU through the specific service bearer channel, where the DPU uses the management packet. Perform NETCONF management data analysis and configure related parameters of the DPU;

In step S406, the OLT and the OLT adjacent device optical network unit ONU carry the NET-CONF message through the specific service bearer channel.

Through the above steps, a specific channel is created between the OLT and the ONU. The OLT and the ONU are used to terminate the channel and the protocol packets are extracted to the device management CPU, so that the OLT and the ONU can establish a clear channel for carrying. NET-CONF protocol, NET-CONF protocol does not perceive the difference of the underlying channel, Therefore, the problem that the optical network unit DPU device has high management complexity and poor scalability is reduced, the management complexity is reduced, the scalability is improved, and the maintenance cost is reduced.

In this embodiment, the specific service bearer channel may be in any one of the following, wherein the specific service bearer channel may include one of the following: GPON encapsulation mode GEM channel of Gigabit passive optical network GPON, Ethernet passive optical The logical link of the network EPON marks the LLID channel, and the virtual LAN VLAN channel of the Ethernet.

In this embodiment, when the specific service bearer channel is a GPON encapsulation mode GEM channel of a Gigabit passive optical network (GPON), the NET-CONF packet is carried on the GEM frame, and the GEM frame length is greater than the NET-CONF. The length of the packet, so that the GEM frame length is sufficient to support a NET-CONF message, does not require fragmentation, reassembly, etc., and is transparent to NET-CONF. The NET-CONF protocol does not perceive the difference of the underlying channel.

In this embodiment, when the specific service bearer channel is an Ethernet virtual LAN VLAN channel, the addressing mode of establishing a specific service bearer channel between the optical line terminal OLT and the optical network unit DPU may include one of the following:

In the case that the VLAN ID and the DPU are in one-to-one correspondence, and one VLAN has multiple DPU devices, the MAC address of the DPU device is identified and distinguished;

In the case of a VLAN bearer, the source MAC address of the packet is the MAC address of the device. The destination MAC address is sent by the broadcast address when the peer MAC address is unknown. If the MAC address of the peer is obtained, the peer MAC address is filled. address.

In this embodiment, the permanent manager proxy PMA of the OLT receives the NETCONF configuration packet from the configuration server before:

Through the northbound interface mode, the PMA uses an IP address to connect to the network management server. The upper layer protocol of the connection includes: network configuration protocol NET-CONF, simple network management protocol SNMP, and human-machine exchange protocol TL1.

In this embodiment, an optical network unit DPU device management apparatus is further provided, which is used to implement the foregoing embodiments and preferred embodiments, and details are not described herein. As used hereinafter, the term "device" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.

FIG. 5 is a structural block diagram of an optical network unit DPU device management apparatus according to an embodiment of the present invention. As shown in FIG. 5, the apparatus includes:

Establishing a device 52, which is configured to establish a specific service bearer channel between the optical line terminal OLT and the optical network unit DPU;

The configuration device 54 is configured to receive the NET-CONF configuration message from the configuration server, and send the management object of the management object to the DPU through the specific service bearer channel, where the DPU is configured. Performing analysis of the management data of the NET-CONF by the management packet, and configuring related parameters of the DPU;

The transmission device 56 is configured to transmit the NET-CONF message through the specific service bearer channel by the OLT and the OLT adjacent device optical network unit ONU.

Through the above device, a specific channel is created between the OLT and the ONU, and the channel is terminated by the OLT and the ONU side, and the protocol packets are respectively extracted to the device management CPU, so that the OLT and the ONU side can establish a clear channel for carrying. NET-CONF protocol, NET-CONF protocol can not detect the difference of the underlying channel, thus solving the problem of high complexity and poor scalability of optical network unit DPU equipment, reducing management complexity, improving scalability, and reducing maintenance. cost.

In this embodiment, the establishing device 52 includes:

The first channel unit, GPON encapsulation mode GEM channel of Gigabit passive optical network GPON;

The second channel unit, the logical link of the Ethernet passive optical network EPON marks the LLID channel;

The third channel unit, the virtual LAN VLAN channel of the Ethernet.

The first channel unit is configured to be a GPON encapsulation mode GEM channel of the GPON of the GPON, and the NET-CONF packet is carried on the GEM frame, and the GEM frame length is greater than the NET. -CONF message length.

In the case where the third channel unit is set to the virtual LAN VLAN channel of the specific service bearer channel, the addressing mode of establishing the specific service bearer channel between the optical line terminal OLT and the optical network unit DPU includes one of the following: When the VLAN ID and the DPU are in one-to-one correspondence, and one VLAN has multiple DPU devices, the DPU device identifies and distinguishes according to the MAC address of the DPU device. In the case of VLAN bearer, the source MAC address of the packet is the device. The MAC address and the destination MAC address are transmitted by using the broadcast address when the peer MAC address is not known. When the MAC address of the other party is obtained, the peer MAC address is filled.

In this embodiment, the device further includes: an interface device, configured to connect to the network management server by using an IP address, where the upper layer protocol includes: network configuration protocol NET-CONF, simple network management Protocol SNMP, Human Machine Exchange Protocol TL1.

In this embodiment, there is also an optical network unit DPU device management system, comprising the apparatus of any of the embodiments, for implementing the method of the above embodiment.

The present invention will be described in detail below in conjunction with the preferred embodiments and implementation scenarios.

The preferred embodiment discloses a management method for managing a DPU device by a PMA on the OLT.

a. Set a specific service bearer channel between the OLT and the DPU, such as GPON GEM channel, EPONEPON (Ethernet Passive Optical Network), LLID, or a specific virtual LAN of the Ethernet (Virtual Local Area Network, referred to as VLAN);

The PMA of the OLT receives the NETCONF configuration packet from the configuration server, and sends the packet to the DPU according to the management object through a specific service bearer channel between the OLT and the DPU;

C. The DPU parses the management packet sent by the specific service bearer channel between the OLT and the DPU to directly parse the management data of the NETCONF, and configure related parameters of the DPU;

Through the OLT and the ONU side, the channel is terminated, and the packets are respectively extracted to the device management CPU; thus, the OLT and the ONU side can establish a clear channel for carrying the NET-CONF protocol.

In the northbound interface mode, the PMA uses an IP address to connect to the network management server. The upper layer protocol may be a network configuration NETCONF protocol, or SNMP, a human machine exchange protocol TL1 (Transaction Language-1), and the like.

For the G-PON Encapsulation Mode (GEM) channel of the GPON and the Logical Link Identifier (LLID) channel of the EPON, the channel and the DPU are in one-to-one correspondence. However, there are two ways to address the VLAN:

If the VLAN ID and the DPU are in one-to-one correspondence, the implementation scheme is similar to the GEM/LLID. If there is more than one DPU device in a VLAN, the MAC address of the DPU device needs to be identified and distinguished.

When a VLAN bearer is used, the source MAC address of the packet is the MAC address of the device and the destination MAC address. If the peer MAC address is unknown, the broadcast MAC address can be used. When the MAC address of the peer is obtained, the peer MAC address can be filled.

6 is a schematic diagram of a NETCONF over GEM/LLID/VLAN management manner according to a preferred embodiment of the present invention;

As shown in FIG. 6, the preferred embodiment does not need to allocate an IP address. The GEM channel is used as a transparent channel between the OLT and the ONU, and the NETCONF packet is directly carried on the GEM frame. The specific method is as follows:

S1, setting a specific service bearer channel between the OLT and the DPU, such as a GPON GEM channel, an EPON LLID, or a specific VLAN of the Ethernet;

S2. The PMA of the OLT receives the NETCONF configuration packet from the configuration server, and sends the packet to the DPU through a specific service bearer channel between the OLT and the DPU according to the managed object.

S3. The DPU parses the management packet sent by the specific service bearer channel between the OLT and the DPU to directly parse the management data of the NETCONF, and configure related parameters of the DPU.

In the north direction, the PMA uses an IP address to connect with the NETCONF configuration service;

S4. If the VLAN bearer mode is adopted and multiple DPU devices exist in the VLAN, the mapping between the MAC address and the DPU needs to be configured on the OLT to facilitate addressing.

In this paper, GPON refers to GPON and its subsequent GPON/XGPON1/NGPON2 equivalent to a series of standards. EPON refers to EPON together with the subsequent 10G EPON equivalent to a series of standards.

It will be apparent to those skilled in the art that the various devices or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed or fabricated separately into individual integrated circuit modules, or a plurality of devices or steps thereof are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

Based on the foregoing technical solution provided by the embodiment of the present invention, a specific service bearer channel is established between the optical line terminal OLT and the optical network unit DPU; the permanent manager proxy PMA of the OLT receives the NETCONF configuration packet from the configuration server, and is managed. The management packet of the object is sent to the DPU through the specific service bearer channel. The DPU analyzes the management data of the NETCONF by the DPU, and configures related parameters of the DPU, thereby solving the DPU device management complexity of the optical network unit. High, poor scalability, reduced management complexity, increased scalability, and reduced maintenance costs.

Claims (11)

An optical network unit DPU device management method includes: A specific service bearer channel is established between the optical line terminal OLT and the optical network unit DPU, and the NET-CONF message is transmitted through the specific service bearer channel; The persistent manager proxy PMA of the OLT receives the NETCONF configuration packet from the configuration server, and sends the management packet of the management object to the DPU through the specific service bearer channel, where the DPU performs the management. The message performs analysis of the management data of the NETCONF, and configures related parameters of the DPU. The method of claim 1 wherein said specific traffic bearer channel comprises one of: Gigabit-to-passive optical network GPON GPON encapsulation mode GEM channel, Ethernet passive optical network EPON logical link tag LLID channel, Ethernet virtual LAN VLAN channel. The method of claim 2, comprising: In the case that the specific service bearer channel is a GPON encapsulation mode GEM channel of a Gigabit passive optical network GPON, the NET-CONF packet is carried on the GEM frame. The method of claim 2, comprising: In the case that the specific service bearer channel is an Ethernet virtual LAN VLAN channel, the addressing mode of establishing a specific service bearer channel between the optical line terminal OLT and the optical network unit DPU includes one of the following: In the case that the VLAN ID and the DPU are in one-to-one correspondence, and one of the VLANs has multiple DPU devices, identify and distinguish according to the MAC address of the DPU device; In the case of a VLAN bearer, the source MAC address of the packet is the MAC address of the device. The destination MAC address is sent by the broadcast address when the peer MAC address is unknown. If the MAC address of the peer is obtained, the peer MAC address is filled. address. The method of claim 1, wherein the permanent manager agent PMA of the OLT receives the NETCONF configuration message from the configuration server before: The PMA connects to the network management server by using an IP address. The upper layer protocol of the connection includes: a network configuration protocol NET-CONF, a simple network management protocol SNMP, and a human-machine exchange protocol TL1. An optical network unit DPU device management device includes: Establishing a device, and setting a specific service bearer channel between the optical line terminal OLT and the optical network unit DPU; Configuring a device, the persistent manager proxy PMA of the OLT receives the NET-CONF configuration packet from the configuration server, and sends the management object of the management object to the DPU through the specific service bearer channel, where The DPU performs the analysis of the management data of the NET-CONF by the management packet, and configures related parameters of the DPU; The transmission device is configured to transmit the NET-CONF message through the specific service bearer channel by the OLT and the OLT adjacent device optical network unit ONU. The apparatus of claim 6 wherein said establishing means comprises: The first channel unit, GPON encapsulation mode GEM channel of Gigabit passive optical network GPON; The second channel unit, the logical link of the Ethernet passive optical network EPON marks the LLID channel; The third channel unit, the virtual LAN VLAN channel of the Ethernet. The apparatus of claim 7 comprising: The NET-CONF packet is carried on the GEM frame in the case of the GEM encapsulation mode GEM channel in which the specific service bearer channel is a GPON-based passive optical network GPON. The apparatus of claim 7 comprising: In the case where the third channel unit is configured to be a virtual local area network (VLAN) VLAN channel of the Ethernet, the addressing mode of establishing a specific service bearer channel between the optical line terminal OLT and the optical network unit DPU includes one of the following: In the case that the VLAN ID and the DPU are in one-to-one correspondence, and one of the VLANs has multiple DPU devices, identify and distinguish according to the MAC address of the DPU device; In the case of a VLAN bearer, the source MAC address of the packet is the MAC address of the device. The destination MAC address is sent by the broadcast address when the peer MAC address is unknown. If the MAC address of the peer is obtained, the peer MAC address is filled. address. The apparatus of claim 6 wherein said apparatus further comprises: The interface device is configured to connect to the network management server by using an IP address. The upper layer protocol of the connection includes: a network configuration protocol NET-CONF, a simple network management protocol SNMP, and a human-machine exchange protocol TL1. An optical network unit DPU device management system includes: The device of any one of claims 6 to 10.

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