CN111817969B - Method and equipment for adjusting switch mode of switch - Google Patents

Abstract

The invention provides a method and a device for adjusting a switch switching mode of a switch, which comprises the following steps: defining the switching mode of the switch as a plurality of switching modes, and setting the priority of the plurality of switching modes; inquiring a routing software table corresponding to each priority from the highest priority to the lowest priority, and judging whether a routing table item in the software table corresponding to the current priority exceeds the highest threshold of the switching mode corresponding to the current priority; and responding to the condition that the routing table entry in the software table corresponding to the current priority exceeds the highest threshold of the switching mode corresponding to the current priority for more than threshold time, switching the switch to the switching mode corresponding to the current priority and restarting the switch. By using the scheme of the invention, the table entry resources of the switch chip can be reasonably distributed without manual adjustment of operation and maintenance personnel, the condition that the message cannot be forwarded because the switch is not processed by the corresponding chip table entry resources is prevented, and the normal operation of the switch service is ensured.

Description

A method and device for adjusting switching mode of a switch

technical field

The field relates to the field of computers, and more particularly to a method and device for adjusting the switching mode of a switch.

Background technique

In order to reduce costs, data centers are increasingly willing to use white-box switches as a solution. Compared with traditional switches, white-brand switches can realize hardware and software decoupling and self-programming, thereby reducing costs and providing more flexibility. For users, white-brand switches have more choices in terms of operating systems and software features, and the networking is more flexible.

The current SONIC (Operating System for Cloud Computing Open Network) version switches can only use the default switch chip performance table entries, which can neither be adjusted manually, nor can the SDK (software development kit) switching mode be adaptively adjusted with traffic changes. The MAC (physical address) table, IPV4 (Internet Protocol version 4) routing table, IPV6 (Internet Protocol version 6) and other table entries can only use the default settings of the chip, and the size is fixed. Since the chip table entry resource uses a fixed default allocation, when the unicast MAC (physical address) entry in the Layer 2 environment is too large, or the IPV4 (Internet Protocol Version 4) routing table entry in the Layer 3 environment is too large, or the IPV6 In the scenario of (Internet Protocol Version 6), the switch cannot adjust the SDK switching mode and allocate the corresponding chip table entry resources reasonably. After the packet reaches the switch, the switch does not have the corresponding chip table entry resource to process the packet, resulting in the packet cannot be processed. Forwarding seriously affects the customer experience.

SUMMARY OF THE INVENTION

In view of this, the purpose of the embodiments of the present invention is to provide a method and device for adjusting the switching mode of a switch. By using the method of the present invention, the table entry resources of the switch chip can be reasonably allocated without manual adjustment by operation and maintenance personnel, which prevents the switch from There is no corresponding chip table entry resource processing, resulting in the situation that packets cannot be forwarded, which ensures the normal operation of switch services.

Based on the above object, an aspect of the embodiments of the present invention provides a method for adjusting the switching mode of a switch, including the following steps:

Define the switching mode of the switch as several switching modes, and set the priority of several switching modes;

Query the routing software table corresponding to each priority from the highest priority to the lowest priority, and determine whether the routing table entry in the software table corresponding to the current priority exceeds the highest threshold of the switching mode corresponding to the current priority;

In response to the routing table entry in the software table corresponding to the current priority exceeding the highest threshold of the switching mode corresponding to the current priority and continuously exceeding the threshold time, the switch is switched to the switching mode corresponding to the current priority and the switch is restarted.

According to an embodiment of the present invention, it also includes:

Query the routing software table corresponding to each priority from the highest priority to the lowest priority, and determine whether the routing table entry in the software table corresponding to the current priority is lower than the lowest threshold of the switching mode corresponding to the current priority;

In response to the routing table entry in the software table corresponding to the current priority being lower than the lowest threshold of the switching mode corresponding to the current priority, an alarm is generated and reported.

According to an embodiment of the present invention, several switching modes are Layer2 mode suitable for Layer 2 network, Layer3 mode suitable for Layer 3 network, IPV6 mode supporting IPV4 or IPV6 dual stack, and default mode keeping all features of the system balanced.

According to an embodiment of the present invention, the priority of the switching mode is IPV6 mode>Layer3 mode>Layer2 mode>default mode.

According to an embodiment of the present invention, the minimum threshold of the IPV6 mode is 100 routing table entries, and the maximum threshold is 1000 routing table entries; the minimum threshold of the Layer3 mode is 4k routing table entries, and the maximum threshold is 5k routing table entries; The minimum threshold of Layer2 mode is 65k routing entries, and the maximum threshold is 66k routing entries.

According to an embodiment of the present invention, the method further includes: in response to none of the routing table entries in the software table corresponding to the current priority exceeding the highest threshold of the switching mode corresponding to the current priority or exceeding the maximum threshold of the switching mode corresponding to the current priority If the highest threshold does not last longer than the threshold time, switch the switch to the switching mode corresponding to the lowest priority and restart the switch.

Another aspect of the embodiments of the present invention further provides a device for adjusting the switching mode of a switch, the device comprising:

a setting module, the setting module is configured to define the switching mode of the switch as several switching modes, and set the priorities of the several switching modes;

Judging module, the judging module is configured to query the routing software table corresponding to each priority from the highest priority to the lowest priority, and determine whether the routing table entry in the software table corresponding to the current priority exceeds the switching mode corresponding to the current priority. the highest threshold;

The switching module is configured to switch the switch to the switching mode corresponding to the current priority in response to the routing table entry in the software table corresponding to the current priority exceeding the highest threshold of the switching mode corresponding to the current priority and continuing to exceed the threshold time. Reboot the switch.

According to an embodiment of the present invention, an alarm module is further included, and the alarm module is configured as:

Query the routing software table corresponding to each priority from the highest priority to the lowest priority, and determine whether the routing table entry in the software table corresponding to the current priority is lower than the lowest threshold of the switching mode corresponding to the current priority;

In response to the routing table entry in the software table corresponding to the current priority being lower than the lowest threshold of the switching mode corresponding to the current priority, an alarm is generated and reported.

According to an embodiment of the present invention, several switching modes are Layer2 mode suitable for Layer 2 network, Layer3 mode suitable for Layer 3 network, IPV6 mode supporting IPV4 or IPV6 dual stack, and default mode keeping all features of the system balanced.

According to an embodiment of the present invention, it further includes a selection module, the selection module is configured to: in response to the fact that none of the routing table entries in the software table corresponding to the current priority level exceeds the highest threshold of the switching mode corresponding to the current priority level or exceeds the current priority level If the highest threshold of the switching mode corresponding to the priority does not continuously exceed the threshold time, switch the switch to the switching mode corresponding to the lowest priority and restart the switch.

The present invention has the following beneficial technical effects: in the method for adjusting the switching mode of a switch provided by the embodiment of the present invention, by defining the switching mode of the switch as several switching modes, and setting the priorities of several switching modes; from the highest priority to the lowest priority Query the routing software table corresponding to each priority, and judge whether the routing table entry in the software table corresponding to the current priority exceeds the highest threshold of the switching mode corresponding to the current priority; The routing table entry exceeds the highest threshold of the switching mode corresponding to the current priority and continues to exceed the threshold time, the switch is switched to the switching mode corresponding to the current priority and the switch is restarted. The maintenance personnel manually adjusted to prevent the switch from failing to forward packets because the switch did not have the corresponding chip table entry resources to process it, and ensured the normal operation of the switch service.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other embodiments can also be obtained according to these drawings without creative efforts.

1 is a schematic flowchart of a method for adjusting a switching mode of a switch according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a device for adjusting the switching mode of a switch according to an embodiment of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention will be further described in detail below with reference to the specific embodiments and the accompanying drawings.

Based on the above objective, in the first aspect of the embodiments of the present invention, an embodiment of a method for adjusting the switching mode of a switch is provided. Figure 1 shows a schematic flow chart of the method.

As shown in Figure 1, the method may include the following steps:

S1 defines the switching mode of the switch as several switching modes, and sets the priorities of several switching modes;

S2 queries the routing software table corresponding to each priority from the highest priority to the lowest priority, and judges whether the routing table entry in the software table corresponding to the current priority exceeds the highest threshold of the switching mode corresponding to the current priority. The priority starts to query the routing software table in the switching mode corresponding to the highest priority, and determines whether the routing table entry exceeds the highest threshold of the software table entry, and if not, continues to determine the second highest priority until all priority determinations are completed;

S3 responds that the routing table entry in the software table corresponding to the current priority exceeds the highest threshold of the switching mode corresponding to the current priority and continues to exceed the threshold time, switches the switch to the switching mode corresponding to the current priority and restarts the switch, the threshold time It is preferably 1 minute. If it is only a burst of traffic (less than 1 minute), no switching is required for the time being.

By using the technical solution of the present invention, the switch chip table entry resources can be reasonably allocated without manual adjustment by operation and maintenance personnel, which prevents the switch from being unable to forward the message because the switch does not have the corresponding chip table entry resource for processing, and ensures the normal operation of the switch business. run.

In a preferred embodiment of the present invention, it also includes:

Query the routing software table corresponding to each priority from the highest priority to the lowest priority, and determine whether the routing table entry in the software table corresponding to the current priority is lower than the lowest threshold of the switching mode corresponding to the current priority;

In response to the routing table entry in the software table corresponding to the current priority being lower than the lowest threshold of the switching mode corresponding to the current priority, an alarm is generated and reported, prompting the network administrator that the switch chip of the switch can no longer meet the customer service scenario. The switching modes corresponding to each priority have different minimum thresholds. The judgment of different switching modes needs to be judged according to different minimum thresholds, and the alarm also needs to have the information of the switching mode.

In a preferred embodiment of the present invention, several switching modes are Layer 2 modes suitable for Layer 2 networks, which can support MAC entries to the greatest extent, Layer 3 modes suitable for Layer 3 networks, IPV6 modes that support IPV4 or IPV6 dual stack, and There are four default modes to keep all features of the system balanced. Layer 2 mode is suitable for Layer 2 networks and can support MAC entries to the maximum extent. Layer3 mode is suitable for Layer 3 network and can support IPV4 routing entries to the greatest extent. IPV6 mode supports IPV4 or IPV6 dual stack, which can support IPV6 routing to the greatest extent. The defaul mode does not support IPV6, and distributes the MAC and IPV4 routing table entries equally to keep all features of the system balanced.

In a preferred embodiment of the present invention, the priority of the switching mode is IPV6 mode>Layer3 mode>Layer2 mode>default mode. That is to say, when judging, first check the routing software table of IPV6 mode, and judge whether the routing table entry in the software table exceeds the highest threshold of IPV6 mode, if so, switch to IPV6 mode, if not, judge Layer3 mode, with And so on.

In a preferred embodiment of the present invention, the minimum threshold of the IPV6 mode is 100 routing table entries, and the maximum threshold is 1000 routing table entries;

The minimum threshold of Layer3 mode is 4k routing table entries, and the highest threshold is 5k routing table entries;

The minimum threshold of Layer2 mode is 65k routing entries, and the maximum threshold is 66k routing entries. The IPV6 mode can be defined according to the chip specifications, and the maximum routing table resources allocated to IPV6 by the chip specifications are defined as the minimum threshold of 100 routing table entries and the maximum threshold of 1000 routing table entries, and the duration is 1 minute. Because the performance of different brands of switching chips is different, customers can adjust them according to the actual specific chip brand. The Layer3 mode can be defined according to the chip specifications, and the maximum routing table resources allocated to IPV4 by the chip specifications are defined as the minimum threshold of 4k routing table entries and the maximum threshold of 5K routing table entries, and the duration is 1 minute. The Layer2 mode can be defined according to the chip specification, and the maximum allocation of MAC resources by the chip specification is defined as the minimum threshold of 65K routing entries and the maximum threshold of 66K routing entries, and the duration is 1 minute.

In a preferred embodiment of the present invention, the method further includes: responding that none of the routing entries in the software table corresponding to the current priority exceeds the highest threshold of the switching mode corresponding to the current priority or exceeds the switching mode corresponding to the current priority If the highest threshold of the mode does not last longer than the threshold time, switch the switch to the switching mode corresponding to the lowest priority and restart the switch.

Example

The following is an exemplary embodiment of using the method of the present invention to adjust the switching mode of the switch, which mainly includes the following steps:

1. According to the switch application scenario, four SDK switching modes are pre-defined as Layer2 mode, Layer3 mode, IPV6 mode and default mode, and the priority of the switching mode is defined as IPV6 mode greater than Layer3 mode greater than Layer2 mode greater than default mode;

2. Query the IPV6 routing software table corresponding to the IPV6 mode, and determine whether the routing table entry exceeds the maximum threshold and the minimum threshold. If it exceeds the minimum threshold, an alarm message is reported to the network management. If it exceeds the maximum threshold and the duration exceeds the time threshold (default 1 minute) ), switch the switch startup chip performance mode to IPV6 mode and restart the switch, if the routing table entry does not exceed the maximum threshold or the duration is less than the time threshold (default 1 minute), go to step 3;

3. Query the IPV4 routing software table corresponding to the Layer3 mode to determine whether the routing table entry exceeds the maximum threshold and the minimum threshold. If it exceeds the minimum threshold, report an alarm to the network management. If it exceeds the maximum threshold and the duration exceeds the time threshold (default 1 minute) ), switch the switch startup chip performance mode to Layer3 mode and restart the switch. If the routing table entry does not exceed the highest threshold or the duration is less than the time threshold (default 1 minute), go to step 4;

4. Query the MAC software table corresponding to Layer 2 mode to determine whether the routing table entry exceeds the maximum threshold and the minimum threshold. If it exceeds the minimum threshold, report an alarm message to the network management. If it exceeds the maximum threshold and the duration exceeds the time threshold (default 1 minute) , then switch the switch startup chip performance mode to Layer2 mode and restart the switch. If the routing table entry does not exceed the maximum threshold or the duration is less than the time threshold (default 1 minute), go to step 5;

5. Switch the switch boot chip performance mode to defaul mode.

Through the technical solution of the present invention, the switch chip table entry resources can be reasonably allocated, the self-adaptation of the switch chip can be dynamically completed, and manual adjustment by operation and maintenance personnel is not required, which prevents the SONIC white box switch from not processing the corresponding chip table entry resources, resulting in the failure of forwarding of messages. This ensures the normal operation of switch services.

It should be noted that those of ordinary skill in the art can understand that all or part of the processes in the methods of the above-mentioned embodiments can be implemented by instructing relevant hardware through a computer program. The above-mentioned programs can be stored in a computer-readable storage medium. When the program is executed, it may include the flow of the embodiments of the above-mentioned methods. The storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM), or a random access memory (Random Access Memory, RAM) or the like. The above computer program embodiments can achieve the same or similar effects as any of the foregoing method embodiments corresponding thereto.

In addition, the methods disclosed according to the embodiments of the present invention may also be implemented as a computer program executed by the CPU, and the computer program may be stored in a computer-readable storage medium. When the computer program is executed by the CPU, the above-mentioned functions defined in the methods disclosed in the embodiments of the present invention are executed.

Based on the above purpose, in a second aspect of the embodiments of the present invention, a device for adjusting the switching mode of a switch is provided. As shown in FIG. 2 , the device 200 includes:

a setting module, the setting module is configured to define the switching mode of the switch as several switching modes, and set the priorities of the several switching modes;

Judging module, the judging module is configured to query the routing software table corresponding to each priority from the highest priority to the lowest priority, and determine whether the routing table entry in the software table corresponding to the current priority exceeds the switching mode corresponding to the current priority. the highest threshold;

The switching module is configured to switch the switch to the switching mode corresponding to the current priority in response to the routing table entry in the software table corresponding to the current priority exceeding the highest threshold of the switching mode corresponding to the current priority and continuing to exceed the threshold time. Reboot the switch.

In a preferred embodiment of the present invention, an alarm module is further included, and the alarm module is configured as:

Query the routing software table corresponding to each priority from the highest priority to the lowest priority, and determine whether the routing table entry in the software table corresponding to the current priority is lower than the lowest threshold of the switching mode corresponding to the current priority;

In response to the routing table entry in the software table corresponding to the current priority being lower than the lowest threshold of the switching mode corresponding to the current priority, an alarm is generated and reported.

In a preferred embodiment of the present invention, several switching modes are Layer 2 mode suitable for Layer 2 networks, Layer 3 mode suitable for Layer 3 networks, IPV6 mode supporting IPV4 or IPV6 dual stack, and default mode keeping all features of the system balanced .

In a preferred embodiment of the present invention, a selection module is further included, and the selection module is configured to respond that none of the routing table entries in the software table corresponding to the current priority exceeds the highest threshold of the switching mode corresponding to the current priority or exceeds all If the highest threshold of the switching mode corresponding to the current priority does not continuously exceed the threshold time, switch the switch to the switching mode corresponding to the lowest priority and restart the switch.

It should be particularly pointed out that the embodiments of the above system use the embodiments of the above method to specifically describe the working process of each module, and those skilled in the art can easily think of applying these modules to other embodiments of the above method.

The above-described embodiments, particularly any "preferred" embodiments, are possible examples of implementations, and are presented merely for a clear understanding of the principles of the invention. Numerous changes and modifications may be made to the above-described embodiments without departing from the spirit and principles of the technology described herein. All modifications are intended to be included within the scope of this disclosure and protected by the appended claims.

Claims (10)

1. A method for adjusting the switching mode of a switch, comprising the following steps: Defining the switching mode of the switch as several switching modes, and setting the priorities of the several switching modes; Query the routing software table corresponding to each priority from the highest priority to the lowest priority, and judge whether the routing table entry in the software table corresponding to the current priority exceeds the highest threshold of the switching mode corresponding to the current priority; In response to the routing table entry in the software table corresponding to the current priority exceeding the highest threshold of the switching mode corresponding to the current priority and continuing to exceed the threshold time, switching the switch to the switching mode corresponding to the current priority and restart the switch. 2. The method of claim 1, further comprising: Query the routing software table corresponding to each priority from the highest priority to the lowest priority, and determine whether the routing table entry in the software table corresponding to the current priority is lower than the lowest threshold of the switching mode corresponding to the current priority ; In response to the routing table entry in the software table corresponding to the current priority being lower than the lowest threshold of the switching mode corresponding to the current priority, an alarm is generated and reported. 3. The method according to claim 1, characterized in that, the several switching modes are Layer2 mode applicable to Layer 2 network, Layer3 mode applicable to Layer 3 network, IPV6 mode supporting IPV4 or IPV6 dual stack and keeping The default mode in which all features of the system are balanced. The method according to claim 3, wherein the priority of the switching mode is IPV6 mode>Layer3 mode>Layer2 mode>default mode. 5. The method according to claim 4, wherein the minimum threshold of the IPV6 mode is 100 routing table entries, and the maximum threshold is 1000 routing table entries; the minimum threshold of the Layer3 mode is 4k routing tables entry, the maximum threshold is 5k routing table entries; the minimum threshold of the Layer2 mode is 65k routing table entries, and the maximum threshold is 66k routing table entries. 6. The method of claim 1, further comprising: In response to the routing table entries in the software table corresponding to the current priority not exceeding the highest threshold of the switching mode corresponding to the current priority or exceeding the highest threshold of the switching mode corresponding to the current priority and not continuously exceeding the threshold time , switch the switch to the switching mode corresponding to the lowest priority and restart the switch. 7. A device for adjusting the switching mode of a switch, wherein the device comprises: a setting module, the setting module is configured to define the switching mode of the switch as several switching modes, and set the priorities of the several switching modes; Judging module, the judging module is configured to query the routing software table corresponding to each priority from the highest priority to the lowest priority, and determine whether the routing table entry in the software table corresponding to the current priority exceeds the current priority The highest threshold of the switching mode corresponding to the level; A switching module, the switching module is configured to switch the switch to the switch mode in response to the routing table entry in the software table corresponding to the current priority exceeding the highest threshold of the switching mode corresponding to the current priority and continuing to exceed a threshold time. the switch mode corresponding to the current priority and restart the switch. 8. The device according to claim 7, further comprising an alarm module, the alarm module is configured to: Query the routing software table corresponding to each priority from the highest priority to the lowest priority, and determine whether the routing table entry in the software table corresponding to the current priority is lower than the lowest threshold of the switching mode corresponding to the current priority ; In response to the routing table entry in the software table corresponding to the current priority being lower than the lowest threshold of the switching mode corresponding to the current priority, an alarm is generated and reported. 9. The device according to claim 7, wherein the several switching modes are Layer2 mode suitable for Layer 2 network, Layer3 mode suitable for Layer 3 network, IPV6 mode supporting IPV4 or IPV6 dual stack, and maintaining The default mode in which all features of the system are balanced. 10 . The device according to claim 7 , further comprising a selection module, wherein the selection module is configured to respond that none of the routing table entries in the software table corresponding to the current priority level exceeds the current priority level. 11 . If the highest threshold of the switching mode corresponding to the current priority or the highest threshold of the switching mode corresponding to the current priority does not continue for more than the threshold time, the switch is switched to the switching mode corresponding to the lowest priority and the switch is restarted.

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