CN111586505B

CN111586505B - Method and device for realizing rapid recovery of main/standby switching service in PON access system

Info

Publication number: CN111586505B
Application number: CN202010338948.3A
Authority: CN
Inventors: 张显峰; 陈肖; 强亮
Original assignee: China Information And Communication Technology Group Co ltd; Fiberhome Telecommunication Technologies Co Ltd
Current assignee: China Information And Communication Technology Group Co ltd; Fiberhome Telecommunication Technologies Co Ltd
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2022-04-08
Anticipated expiration: 2040-04-26
Also published as: CN111586505A

Abstract

The invention discloses a method and a device for realizing rapid recovery of main/standby switching services in a PON access system, and relates to the technical field of PON access systems. The method comprises the following steps: after receiving the LACP message from the upper connection port, the main disk/the standby disk processes the LACP message and encapsulates the LACP message into a master-slave communication message and sends the master-slave communication message to the standby disk/the main disk; after receiving the master-slave communication message, the standby disk/the master disk analyzes and processes an LACP protocol message; when the main/standby switching is executed, the standby disk becomes a new main disk and does not need to renegotiate the LACP; after the main and standby switching, the new main disk detects the port state change of the original main disk, reports the abnormal port information of the aggregation group members, and deletes the corresponding port of the aggregation group members on the new main disk, thereby realizing the rapid recovery of the service. The invention can realize the rapid recovery of the main/standby switching service under the scene of main/standby load sharing cross-disk LACP link aggregation of the PON access system, has simple realization mode and easy operation, and meets the actual application requirement.

Description

Method and device for realizing rapid recovery of main/standby switching service in PON access system

Technical Field

The present invention relates to the technical field of PON (Passive Optical Network ) access systems, and in particular, to a method and an apparatus for implementing fast recovery of active/standby switching services in a PON access system.

Background

An LACP (Link Aggregation Control Protocol) is a Protocol for implementing Link dynamic Aggregation, and the LACP exchanges information with an opposite terminal through an LACPDU (Link Aggregation Control Protocol Data Unit), thereby providing a standard negotiation manner for devices exchanging Data. LACP link aggregation has the advantages of increasing network bandwidth, improving network connection reliability, load sharing flow, and the like, and is widely applied to data communication. Currently, an LACP aggregation link is generally used to carry services such as voice, data, and video, and therefore, it is very important to ensure normal operation of an LACP protocol and link stability.

With the development of access technology, the PON access device has the development characteristics of miniaturization, integration, scene diversification, support of master control panel load sharing, and the like. For a PON access System supporting load sharing, 2 SCUs (System Control units) are usually designed, which are a main master and a standby master, and are referred to as a master and a standby for short. The two SCUs are respectively connected with the service board and work simultaneously, an uplink port is integrated on the SCU panel, and service data uplink from the service board is forwarded to the network side from the uplink port of the main disk or the standby disk through load sharing. The uplink ports of the main disk and the standby disk are directly connected with the switch at the network side, so that the service is not influenced when the main disk fails, and the load sharing of the main disk and the standby disk is very important.

Currently, the service carried on the main disk and the standby disk is protected mainly by starting LACP cross-disk aggregation. On one hand, multiple ports of the main disk and the standby disk are subjected to cross-disk aggregation, so that higher bandwidth and throughput are provided; on the other hand, the stability of the system is improved by cross-disk aggregation, when the main disk is abnormal, the equipment automatically triggers the LACP link switching, and the service data shared on the equipment is switched to the link corresponding to the original standby disk port, so that the system stability is improved. The main/standby switching is to ensure the normal operation of the communication equipment and no interruption of the service under the condition of the operation failure, unexpected power failure or version upgrade of the main SCU, and has important functions of maintaining the stability of the network, ensuring that the user service is not affected and the like. Before and after the main/standby switching, the system on the main disk can quickly switch the data shared by the uplink port of the main disk to the standby uplink.

Currently, the existing LACP technology mainly focuses on aggregation method implementation and link failure handling. For example, the invention patent with publication number CN107277652A provides a method for implementing cross-ethernet online connected disc LACP link aggregation, which expands the uplink disc function of an ethernet type single disc by using an LACP link aggregation method, increases the bandwidth of the uplink link, and further improves the reliability of the link; for example, the invention patent with publication number CN102364892B discloses a method for switching aggregated links, which solves the problem of "flash-off" of links during the switching of LACP links, and further avoids frequent "drop" during user communication. The main/standby switching technology mainly focuses on the implementation method of the main/standby switching mechanism and the implementation method based on uninterrupted ordinary physical link service. For example, the invention patent with publication number CN104539530A provides a method for uninterrupted main/standby switching forwarding, which realizes uninterrupted main/standby switching traffic forwarding and ensures real-time performance of services by maintaining operations such as maintaining a mapping forwarding table unchanged for a certain time.

However, none of the above patents relates to the PON access system implementing active/standby load sharing, and there is no specific method for recovering active/standby switching services in a scenario where an uplink port is located on ports of a main disk and a standby disk panel, so how to ensure cross-disk aggregation of LACP in the scenario. In addition, in a PON access system load sharing scenario, cross-disk LACP link aggregation is started to protect an uplink, and an LACP protocol needs to be negotiated again after main/standby switching, which causes a problem that service recovery of LACP cross-disk aggregation is too slow after main/standby switching.

Disclosure of Invention

The invention aims to overcome the defects of the background technology, and provides a method and a device for realizing the rapid recovery of main/standby switching services in a PON access system, which can effectively solve the problem that the recovery of the main/standby switching services is too slow because cross-disk LACP link aggregation is started to protect an uplink under the load sharing scene of the PON access system and an LACP protocol needs to be negotiated again after main/standby switching; and the realization mode is simple and easy to operate.

In order to achieve the above object, the present invention provides a method for implementing fast recovery of main/standby switching services in a PON access system, where the PON access system includes a main disk and a standby disk, the main disk and the standby disk implement load sharing of services, and a cross-disk LACP link aggregation is started to protect an uplink, and the implementing method includes the following steps:

A. after receiving the LACP protocol message from the uplink port, the main disk/the standby disk captures the LACP protocol message to a CPU of the main disk/the standby disk for analysis, and the main disk/the standby disk encapsulates the LACP protocol message into a master-slave communication message and sends the master-slave communication message to the standby disk/the main disk while processing the analyzed LACP protocol message; after receiving the master-slave communication message, the standby disk/the master disk analyzes an LACP protocol message and processes the analyzed LACP protocol message;

B. executing main/standby switching, wherein the standby disk becomes a new main disk without renegotiation of LACP protocol, and the main disk becomes a new standby disk after being restarted;

C. after the main and standby switching, the new main disk detects the port state change of the original main disk, reports the abnormal port information of the aggregation group members, and deletes the corresponding port of the aggregation group members on the new main disk, thereby realizing the rapid recovery of the service.

On the basis of the above technical solution, the step a further includes the following operations: and setting a load sharing mode, enabling an LACP function switch, and configuring an LACP aggregation link, so that the main disk and the standby disk can negotiate with the opposite-end switch successfully.

On the basis of the above technical solution, the step B further comprises the following operations before: before the main/standby switching, the LACP protocols of the main disk and the standby disk are successfully aggregated.

On the basis of the above technical solution, in the step B, after the master disk becomes a new spare disk after being restarted, the method further includes the following operations: synchronizing LACP configuration information from the new master disk, wherein the LACP configuration information comprises an LACP virtual MAC address control switch, an LACP virtual MAC address and LACP configuration data.

On the basis of the above technical solution, in the step C, reporting the abnormal port information of the aggregation group member in an interrupt manner.

The invention also provides a device for realizing the rapid recovery of the main/standby switching service in the PON access system, wherein the PON access system comprises a main disk and a standby disk, the main disk and the standby disk realize the load sharing of the service, and cross-disk LACP link aggregation is started to protect an uplink; the device comprises a switching chip, a bridge module, an LACP protocol module and a main/standby switching module which are arranged in a main disk and a standby disk, wherein a state detection hardware channel is arranged between the main disk and the standby disk;

the switch chip is used for: after receiving the LACP protocol message from the uplink port, capturing the LACP protocol message to a CPU of the disk for analysis; after the main/standby switching, when receiving the abnormal port information of the aggregation group member notified by the state detection hardware channel, reporting the information to the LACP module;

the bridge module is to: distributing the analyzed LACP protocol message to an LACP protocol module, packaging the LACP protocol message into a master-slave communication message, and sending the master-slave communication message to a bridge module of a disk pair; after receiving the master-slave communication message, analyzing an LACP protocol message and distributing the LACP protocol message to an LACP protocol module;

the LACP protocol module is configured to: receiving an LACP protocol message distributed from the bridge module, maintaining an LACP protocol state machine, and carrying out processing of sending the LACP protocol message at fixed time; after the main/standby switching, when receiving the abnormal port information of the aggregation group member reported by the switching chip, deleting the corresponding port of the aggregation group member on the new main disk;

the active/standby switching module is configured to: executing main/standby switching, controlling the standby disk to become a new main disk without renegotiation of LACP protocol; after the main disk is controlled to be restarted, the main disk becomes a new standby disk;

the state detection hardware channel is configured to: after the main/standby switching, the port state change of the original main disk is detected, and the information of the abnormal port of the aggregation group member is notified to the switching chip of the new main disk.

On the basis of the above technical solution, the implementation apparatus further includes a configuration module, configured to: and setting a load sharing mode, enabling an LACP function switch, and configuring an LACP aggregation link, so that the main disk and the standby disk can negotiate with the opposite-end switch successfully.

On the basis of the above technical solution, the implementation apparatus further includes an aggregation detection module, configured to: before the main/standby switching, the LACP protocols of the main disk and the standby disk are successfully aggregated.

On the basis of the above technical solution, after the main/standby switching module controls the main disk to restart, the main disk will synchronize LACP configuration information from the new main disk, where the LACP configuration information includes an LACP virtual MAC address control switch, an LACP virtual MAC address, and LACP configuration data.

On the basis of the technical scheme, the switching chip reports the abnormal port information of the aggregation group members to the LACP module in an interruption mode.

The invention has the beneficial effects that:

in the invention, when the main/standby switching is executed, the LACP protocol of the port on the standby disk (new main disk) does not need to be negotiated again, and only when the reported abnormal aggregation group member port information is received after the main/standby switching, the corresponding aggregation member port is deleted on the standby disk (new main disk), wherein the aggregation member port comprises a software table entry and a hardware table entry, thereby realizing the rapid recovery of the service; the problem that the main/standby switching service is recovered too slowly due to the fact that cross-disk LACP link aggregation is started to protect an uplink under a PON access system load sharing scene, and an LACP protocol needs to be negotiated again after main/standby switching is effectively solved.

Drawings

Fig. 1 is a diagram of a PON access system active/standby load sharing cross-disk LACP link aggregation scenario;

fig. 2 is a flowchart of a method for implementing fast recovery of main/standby switching services in a PON access system according to an embodiment of the present invention;

fig. 3 is a block diagram of a device for implementing fast recovery of main/standby switching services in a PON access system according to an embodiment of the present invention;

fig. 4 is a flowchart illustrating a method for implementing fast recovery of main/standby switching services in a PON access system according to an example;

fig. 5 is a schematic diagram illustrating an exemplary procedure for receiving and processing an LACP protocol packet.

Detailed Description

The method aims at solving the problem that in the prior art, under a PON access system load sharing scene, cross-disk LACP link aggregation is started to protect an uplink, and an LACP protocol needs to be negotiated again after main/standby switching, so that the recovery of LACP cross-disk aggregation service is too slow after the main/standby switching. The invention aims to provide a method and a device for realizing three-layer service load sharing by an access system, which can ensure that under a PON access system load sharing scene, cross-disk LACP link aggregation is started to protect an uplink, and an LACP protocol does not need to be negotiated again after main/standby switching, thereby realizing the rapid recovery of services.

In order to achieve the purpose, the main design idea of the invention is as follows: the LACP protocol messages received by the uplink port of the main disk are respectively sent to the standby disk for processing, the LACP protocol messages received by the uplink port of the standby disk are sent to the main disk for processing, the LACP protocol messages of the port on the standby disk (new main disk) do not need to be negotiated again when the main disk and the standby disk are switched, and only when the reported abnormal aggregation group member port information is received after the main disk and the standby disk are switched, the corresponding aggregation member port is deleted on the standby disk (new main disk), so that the rapid recovery of the service can be realized.

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

However, it should be noted that: the examples to be described next are only some specific examples, and are not intended to limit the embodiments of the present invention necessarily to the following specific steps, values, conditions, data, orders, and the like. Those skilled in the art can, upon reading this specification, utilize the concepts of the present invention to construct more embodiments than those specifically described herein.

Example one

This embodiment provides a method for implementing fast recovery of a main/standby switching service in a PON access system, where the PON access system includes, as shown in fig. 1, a main disk (main disk for short) and a standby disk (standby disk for short), the main disk and the standby disk implement load sharing of the service, and open cross-disk LACP link aggregation to protect an uplink, for example, in fig. 1, a cross-disk LACP link aggregation is created by using a port 1 and a port 2 of the main disk and a port 3 and a port 4 of the standby disk, respectively, and is communicated with a switch. Referring to fig. 2, the implementation method includes the following steps:

A. after receiving the LACP protocol message from the uplink port, the master disk captures the LACP protocol message to a master disk CPU for analysis, processes the analyzed LACP protocol message, encapsulates the LACP protocol message into a master-slave communication message, and sends the master-slave communication message to the backup disk through a master-slave channel; after receiving the master-slave communication message through the master-slave channel, the standby disk analyzes an LACP protocol message and processes the analyzed LACP protocol message;

after receiving the LACP protocol message from the uplink port, the standby disk captures the LACP protocol message to a CPU of the standby disk for analysis, processes the analyzed LACP protocol message, encapsulates the LACP protocol message into a master-slave communication message, and sends the master-slave communication message to the master disk through a master-slave channel; after receiving the master-slave communication message through the master-slave channel, the master disk analyzes the LACP protocol message and processes the analyzed LACP protocol message. It can be understood that, in actual operation, the LACP protocol packet is processed, specifically, the LACP protocol packet includes maintaining an LACP protocol state machine, and processing such as sending the LACP protocol packet at regular time.

B. And executing the main/standby switching, wherein the standby disk becomes a new main disk without renegotiation of the LACP protocol, and the main disk becomes a new standby disk after being restarted. It can be understood that, because the time for the active/standby switching is very short (usually within 50 ms), and the operation in step a is performed before the active/standby switching, the main disk and the standby disk can receive and process the same LACP protocol packet, and then states of LACP protocol state machines on the main disk and the standby disk are the same, when the active/standby switching is performed, the standby disk can be immediately upgraded to a new main disk, and an LACP protocol of a port on the standby disk does not need to be negotiated again, and connectivity of the aggregation link can be maintained only by periodically generating the LACP protocol packet.

Further, in practical applications, when the main/standby switching is performed, after the main disk becomes a new standby disk after being restarted, LACP configuration information is synchronized from the new main disk (original standby disk), where the LACP configuration information includes an LACP virtual MAC address control switch, an LACP virtual MAC address, LACP configuration data, and the like. It can be understood that, after the master disk becomes a new standby disk after restarting, the LACP protocol message sent by the opposite terminal device can be received as well; the LACP protocol state machine operates normally, and sends LACP aggregation group member information to the exchange chip, the LACP aggregation group member information is successfully negotiated by the main disk and the opposite terminal device before the main/standby switching, and is sent to the exchange chip when the aggregation is successful.

C. After the main and standby switching, the new main disk detects the port state change of the original main disk, reports the abnormal port information of the aggregation group members, and deletes the corresponding port of the aggregation group members on the new main disk, thereby realizing the rapid recovery of the service. In this embodiment, reporting the abnormal port information of the aggregation group member in an interrupt manner.

As can be seen from the above operation, in this embodiment, the LACP protocol messages received by the uplink port of the main disk are sent to the standby disk for processing, and the LACP protocol messages received by the uplink port of the standby disk are sent to the main disk for processing, so that the main disk and the standby disk can receive and process the same LACP protocol messages, and further the states of the LACP protocol state machines on the main disk and the standby disk are the same; when the main/standby switch is performed, the LACP protocol of the port on the standby disk (new main disk) does not need to be negotiated again, and only after the main/standby switch is performed, when the reported abnormal port information of the aggregation group member is received, the corresponding aggregation member port is deleted on the standby disk (new main disk), so that the rapid recovery of the service can be realized.

Example two

The basic steps of the method for implementing fast recovery of the main/standby switching service in the PON access system provided in this embodiment are the same as those in the first embodiment, except that, as an optional implementation manner, before step a, the method further includes the following operations: and setting a load sharing mode, enabling an LACP function switch, and configuring an LACP aggregation link, so that the main disk and the standby disk can negotiate with the opposite-end switch successfully. Specifically, the operations thereof include:

(1) and setting the PON access system as a load sharing mode by using a command of the current system, and establishing a networking environment according to the corresponding networking.

(2) Configuration information is issued on the current master disk to enable the LACP function switch; adding the corresponding uplink port to the same aggregation group according to the port information which is set in the configuration information and used for creating cross-disk LACP link aggregation to form LACP aggregation group member information, and setting an aggregation mode as LACP link aggregation; the configuration synchronization is realized through a system database, the information of the LACP aggregation group members is synchronized to the standby disk, the LACP function switch is enabled, and the LACP protocol function is also ensured to be started on the standby disk. Through the step, all the uplink ports of the main disk and the standby disk are managed and maintained on the main disk and the standby disk, and the corresponding aggregation group member ports run the LACP protocol.

(3) And ensuring that the LACP protocols of the main disk and the standby disk uniformly use the LACP virtual MAC address of the system to interact with the opposite-end equipment. If the virtual MAC address is not opened by the main disk or the standby disk, the LACP virtual MAC address of the disk needs to be enabled to control the switch, and the LACP virtual MAC address is notified. It can be understood that the LACP protocols of the main disk and the standby disk uniformly use LACP virtual MAC addresses of the system to interact with the opposite device, which is the basis for successful aggregation of the LACP protocols on the main disk and the standby disk, and the virtual MAC addresses belong to the prior art and are not described herein.

(4) And the duplex, rate, VLAN and other attributes of the port are configured, so that the port and the opposite-end switch can be successfully negotiated normally, and the physical state is changed into UP. If the port state is not UP, it needs to check whether the attributes of the port are consistent or not and whether the physical connection is correct or not, and the reason that the physical state is DOWN is checked. It can be understood that the negotiation between the main disk, the standby disk and the opposite-end switch is successful, and when the aggregation is successful, the LACP aggregation group member information is issued to the local disk switch chip.

EXAMPLE III

The basic steps of the method for implementing fast recovery of the main/standby switching service in the PON access system provided in this embodiment are the same as those in the first embodiment, except that as an optional implementation manner, before step B, the method further includes the following operations: before the main/standby switching, the LACP protocols of the main disk and the standby disk are successfully aggregated.

Specifically, the operations include: respectively checking whether the LACP protocols of the main disk and the standby disk are successfully aggregated or not, wherein the checking mode is that the aggregation states of ports on the main disk and the standby disk and the LACP aggregation group member information of an exchange chip are checked; the aggregation state information of all the aggregation group member ports can be seen on the main disk and the standby disk, when the LACP protocol is successfully aggregated, the aggregation states of all the ports are the aggregation success states, and the LACP aggregation group member information is successfully issued to the switching chip. If the LACP protocol aggregation is not successful, checking whether the LACP configuration and the networking connection of the corresponding disk are normal or not, checking out the reason why the aggregation cannot be performed and processing the reason, ensuring that the aggregation states of the ports of the main disk and the standby disk are the aggregation success states before the main/standby switching, and successfully issuing LACP aggregation group member information to the switching chip.

Example four

Based on the same inventive concept, an embodiment of the present invention further provides an apparatus for implementing fast restoration of a main/standby switching service in a PON access system, where an access system applied by the apparatus is shown in fig. 1 and includes a main disk and a standby disk, the main disk and the standby disk implement load sharing of a service, and a cross-disk LACP link aggregation is started to protect an uplink, for example, in fig. 1, a cross-disk LACP link aggregation is created by using a port 1 and a port 2 of the main disk and a port 3 and a port 4 of the standby disk respectively, and is communicated with a switch. Specifically, referring to fig. 3, the implementation apparatus includes a switch chip, a bridge module, an LACP protocol module, and a main/standby switching module that are disposed in a main disk and a standby disk, and a state detection hardware channel is disposed between the main disk and the standby disk.

Wherein, the exchange chip is used for: after receiving the LACP protocol message from the uplink port, capturing the LACP protocol message to a CPU of the disk for analysis; after the main/standby switching, when receiving the abnormal port information of the aggregation group member notified by the state detection hardware channel, reporting the information to the LACP module. In this embodiment, when receiving the information of the abnormal port of the aggregation group member notified by the state detection hardware channel, the switch chip reports the information to the LACP protocol module in an interrupt manner. The specific reporting process is as follows: the exchange chip sends the information to the bridge module in an interrupt mode, and then the bridge module forwards the information to the LACP module.

A bridge module to: distributing the analyzed LACP protocol message to an LACP protocol module, packaging the LACP protocol message into a master-slave communication message, and sending the master-slave communication message to a bridge module of a counter disk (if the disk is a master disk, the counter disk is a standby disk, and if the disk is the standby disk, the counter disk is the master disk) through a master-slave channel; after receiving the master-slave communication message, the LACP protocol message is analyzed and distributed to the LACP protocol module.

A LACP protocol module to: receiving an LACP protocol message distributed from the bridge module, maintaining an LACP protocol state machine, and carrying out processing of sending the LACP protocol message at fixed time; after the main/standby switching, when the abnormal information of the port of the aggregation group member reported by the switching chip is received, the corresponding port of the aggregation group member is deleted on the switching chip of the new main disk.

A main/standby switching module, configured to: executing main/standby switching, controlling the standby disk to become a new main disk without renegotiation of LACP protocol; and after the main disk is controlled to restart, the main disk becomes a new standby disk. In practical application, when the main/standby switching module performs main/standby switching, after the main disk is controlled to be restarted, LACP configuration information is also synchronized from a new main disk (original standby disk), where the LACP configuration information includes an LACP virtual MAC address control switch, an LACP virtual MAC address, LACP configuration data, and the like. It can be understood that, after the master disk is restarted to become a new standby disk, the LACP protocol message sent by the opposite-end device can be received as well; the LACP protocol state machine operates normally, and sends the information of the LACP aggregation group member to the exchange chip.

A state detection hardware channel to: after the main/standby switching, the port state change of the original main disk is detected, and the information of the abnormal port of the aggregation group member is notified to the switching chip of the new main disk.

Further, as an optional implementation manner, the implementation apparatus further includes a configuration module. The configuration module is configured to: and setting a load sharing mode, enabling an LACP function switch, and configuring an LACP aggregation link, so that the main disk and the standby disk can negotiate with the opposite-end switch successfully. Specifically, the operation flow of the configuration module includes:

(2) Configuration information is issued on the current master disk to enable the LACP function switch; adding the corresponding uplink port to the same aggregation group according to the port information which is set in the configuration information and used for creating cross-disk LACP link aggregation to form LACP aggregation group member information, and setting an aggregation mode as LACP link aggregation; the configuration synchronization is realized through a system database, the information of the LACP aggregation group members is synchronized to the standby disk, the LACP function switch is enabled, and the LACP protocol function is also ensured to be started on the standby disk.

(3) And ensuring that the LACP protocols of the main disk and the standby disk uniformly use the LACP virtual MAC address of the system to interact with the opposite-end equipment. If the virtual MAC address is not opened by the main disk or the standby disk, the LACP virtual MAC address of the disk needs to be enabled to control the switch, and the virtual MAC address is notified to the LACP protocol module.

(4) And the duplex, rate, VLAN and other attributes of the port are configured, so that the port and the opposite-end switch can be successfully negotiated normally, and the physical state is changed into UP. If the port state is not UP, it needs to check whether the attributes of the port are consistent or not and whether the physical connection is correct or not, and the reason that the physical state is DOWN is checked. It can be understood that, the main disk, the standby disk and the opposite-end switch negotiate successfully, and when aggregation is successful, the LACP protocol module will issue LACP aggregation group member information to the local disk switching chip.

Further, as an optional implementation manner, the implementation apparatus further includes an aggregation detection module. The aggregate detection module is configured to: before the main/standby switching, the LACP protocols of the main disk and the standby disk are successfully aggregated. Specifically, the operation flow of the aggregation detection module includes: respectively checking whether the LACP protocols of the main disk and the standby disk are successfully aggregated or not, wherein the checking mode is that the aggregation states of ports on the main disk and the standby disk and the LACP aggregation group member information of an exchange chip are checked; the aggregation state information of all the aggregation group member ports can be seen on the main disk and the standby disk, when the LACP protocol is successfully aggregated, the aggregation states of all the ports are the aggregation success states, and the LACP aggregation group member information is successfully issued to the switching chip. If the LACP protocol aggregation is not successful, checking whether the LACP configuration and the networking connection of the corresponding disk are normal or not, checking out the reason why the aggregation cannot be performed and processing the reason, ensuring that the aggregation states of the ports of the main disk and the standby disk are the aggregation success states before the main/standby switching, and successfully issuing LACP aggregation group member information to the switching chip.

In order to understand the present invention more clearly, the following description will illustrate the implementation method of the present invention in conjunction with the implementation device of the present invention. Referring to fig. 4, a method for implementing fast recovery of main/standby switching service in a PON access system includes the following steps:

s1, the configuration module uses the command of the current system to set the PON access system as a load sharing mode, and builds a networking environment according to the corresponding networking.

S2, the configuration module issues configuration information on the current master disk to enable the LACP function switch; adding the corresponding uplink port to the same aggregation group according to the port information which is set in the configuration information and used for creating cross-disk LACP link aggregation to form LACP aggregation group member information, and setting an aggregation mode as LACP link aggregation; the configuration synchronization is realized through a system database, the information of the LACP aggregation group members is synchronized to the standby disk, the LACP function switch is enabled, and the LACP protocol function is also ensured to be started on the standby disk.

S3, the configuration module judges whether the LACP protocols of the main disk and the standby disk uniformly use the LACP virtual MAC address of the system to interact with the opposite terminal equipment; if so, the process proceeds to step S5, otherwise, the process proceeds to step S4.

S4, if the main disk or the spare disk does not start the virtual MAC address, the configuration module enables the LACP virtual MAC address control switch of the disk, informs the LACP protocol module of the virtual MAC address, and goes to step S5.

S5, the configuration module configures the duplex, speed and VLAN and other attributes of the port, and judges that the uplink ports of the main disk and the standby disk can negotiate successfully with the opposite terminal switch normally, and the physical state becomes UP; if the uplink port status is not UP, go to step S6, otherwise go to step S7.

S6, the configuration module checks whether the configuration attribute of the uplink port is consistent and the physical connection is correct, and returns to S5 after checking and processing the reason that the physical state is DOWN.

S7, as shown in fig. 5, after the switch chip of the main disk receives the LACP protocol message from the uplink port, the LACP protocol message is captured to the CPU of the main disk for analysis; the bridge module distributes the analyzed LACP protocol message to the LACP protocol module for processing, and simultaneously encapsulates the LACP protocol message into a master-slave communication message which is sent to the bridge module of the standby disk through a master-slave channel; after receiving the master-slave communication message sent by the master disk through the master-slave channel, the bridge module of the backup disk analyzes an LACP protocol message and then distributes the LACP protocol message to the LACP protocol module for processing;

after receiving the LACP protocol message from the upper connection port, the exchange chip of the standby disk captures the LACP protocol message to the CPU of the standby disk for analysis; the bridge module distributes the analyzed LACP protocol message to the LACP protocol module for processing, and simultaneously encapsulates the LACP protocol message into a master-slave communication message which is sent to the bridge module of the master disk through a master-slave channel; after receiving the master-slave communication message sent by the backup disk through the master-slave channel, the bridge module of the master disk analyzes the LACP protocol message and then distributes the LACP protocol message to the LACP protocol module for processing. When the LACP protocol modules of the master disk and the standby disk are processed, the LACP protocol modules include maintaining an LACP protocol state machine, and performing processing such as sending an LACP protocol message at regular time.

S8, the aggregation detection module checks whether the LACP protocols of the main disk and the standby disk are aggregated successfully or not, wherein the check mode is that the aggregation states of ports on the main disk and the standby disk and the LACP aggregation group member information of the switching chip are checked; if the aggregation of the LACP protocol is successful (the aggregation states of all the ports are the aggregation successful states, and the information of the LACP aggregation group members is successfully issued to the switching chip), the step S10 is executed; if the LACP protocol aggregation is not successful, the process proceeds to step S9.

And S9, the aggregation detection module checks whether the LACP configuration and the networking connection of the corresponding disk are normal, checks out the reason why aggregation cannot be performed and processes the reason, ensures that the aggregation states of the ports of the main disk and the standby disk are both aggregation success states before main/standby switching, successfully sends information of LACP aggregation group members to the switching chip, and returns to the step S8.

S10, the main/standby switching module executes the main/standby switching, controls the standby disk to become a new main disk without renegotiation of the LACP protocol, and only needs the LACP protocol module to periodically send the LACP protocol message to maintain the connectivity of the aggregation link; after the main/standby switching module controls the main disk to restart, the main disk becomes a new standby disk and LACP configuration information is synchronized from the new main disk (original standby disk), wherein the LACP configuration information comprises an LACP virtual MAC address control switch, an LACP virtual MAC address, LACP configuration data and the like. After the master disk is restarted to become a new standby disk, the LACP protocol message sent by the opposite terminal equipment can be received; the LACP protocol state machine operates normally, and sends the information of the LACP aggregation group member to the exchange chip.

S11, after the main-standby switch, the standby disk quickly detects the port state change of the original main disk (time is 0.1ms magnitude order) through the state detection hardware channel, and informs the switching chip of the new main disk of the abnormal port information of the aggregation group member; after receiving the abnormal port information of the aggregation group member, the switching chip reports the information to the LACP module in an interruption mode; the LACP module deletes the corresponding port of the aggregation group member on the switching chip of the new main disk, thereby realizing the rapid recovery of the service.

S12, observing whether the LACP protocol software and hardware aggregation list item information on the backup disk is correct, observing the recovery condition of the user service, and the service recovery switching time is within 5 ms.

Note that: the above-described embodiments are merely examples and are not intended to be limiting, and those skilled in the art can combine and combine some steps and devices from the above-described separately embodiments to achieve the effects of the present invention according to the concept of the present invention, and such combined and combined embodiments are also included in the present invention, and such combined and combined embodiments are not described herein separately.

Advantages, effects, and the like, which are mentioned in the embodiments of the present invention, are only examples and are not limiting, and they cannot be considered as necessarily possessed by the various embodiments of the present invention. Furthermore, the foregoing specific details disclosed herein are merely for purposes of example and for purposes of clarity of understanding, and are not intended to limit the embodiments of the invention to the particular details which may be employed to practice the embodiments of the invention.

The block diagrams of devices, apparatuses, systems involved in the embodiments of the present invention are only given as illustrative examples, and are not intended to require or imply that the connections, arrangements, configurations, etc. must be made in the manner shown in the block diagrams. These devices, apparatuses, devices, systems may be connected, arranged, configured in any manner, as will be appreciated by those skilled in the art. Words such as "including," "comprising," "having," and the like are open-ended words that mean "including, but not limited to," and are used interchangeably therewith. As used in connection with embodiments of the present invention, the terms "or" and "refer to the term" and/or "and are used interchangeably herein unless the context clearly dictates otherwise. The word "such as" is used in connection with embodiments of the present invention to mean, and is used interchangeably with, the word "such as but not limited to".

The flow charts of steps in the embodiments of the present invention and the above description of the methods are merely illustrative examples and are not intended to require or imply that the steps of the various embodiments must be performed in the order presented. As will be appreciated by those skilled in the art, the order of the steps in the above embodiments may be performed in any order. Words such as "thereafter," "then," "next," etc. are not intended to limit the order of the steps; these words are only used to guide the reader through the description of these methods. Furthermore, any reference to an element in the singular, for example, using the articles "a," "an," or "the" is not to be construed as limiting the element to the singular.

In addition, the steps and devices in the embodiments of the present invention are not limited to be implemented in a certain embodiment, and in fact, some steps and devices in the embodiments of the present invention may be combined according to the concept of the present invention to conceive new embodiments, and these new embodiments are also included in the scope of the present invention.

The respective operations in the embodiments of the present invention may be performed by any appropriate means capable of performing the corresponding functions. The means may comprise various hardware and/or software components and/or modules including, but not limited to, hardware circuitry or a processor.

The method of an embodiment of the invention includes one or more acts for implementing the method described above. The methods and/or acts may be interchanged with one another without departing from the scope of the claims. In other words, unless a specific order of actions is specified, the order and/or use of specific actions may be modified without departing from the scope of the claims.

The functions in the embodiments of the present invention may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions may be stored as one or more instructions on a tangible computer-readable medium. A storage media may be any available tangible media that can be accessed by a computer. By way of example, and not limitation, such computer-readable media can comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other tangible medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. As used herein, disk (disk) and Disc (Disc) include Compact Disc (CD), laser Disc, optical Disc, DVD (Digital Versatile Disc), floppy disk and blu-ray Disc where disks reproduce data magnetically, while discs reproduce data optically with lasers.

Accordingly, a computer program product may perform the operations presented herein. For example, such a computer program product may be a computer-readable tangible medium having instructions stored (and/or encoded) thereon that are executable by one or more processors to perform the operations described herein. The computer program product may include packaged material.

Other examples and implementations are within the scope and spirit of the embodiments of the invention and the following claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hard-wired, or any combination of these. Features implementing functions may also be physically located at various locations, including being distributed such that portions of functions are implemented at different physical locations.

Various changes, substitutions and alterations to the techniques described herein may be made by those skilled in the art without departing from the techniques of the teachings as defined by the appended claims. Moreover, the scope of the claims of the present disclosure is not limited to the particular aspects of the process, machine, manufacture, composition of matter, means, methods and acts described above. Processes, machines, manufacture, compositions of matter, means, methods, or acts, presently existing or later to be developed that perform substantially the same function or achieve substantially the same result as the corresponding aspects described herein may be utilized. Accordingly, the appended claims are intended to include within their scope such processes, machines, manufacture, compositions of matter, means, methods, or acts.

The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the invention. Thus, the present invention is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The foregoing description has been presented for purposes of illustration and description. Furthermore, the description is not intended to limit embodiments of the invention to the form disclosed herein. While a number of example aspects and embodiments have been discussed above, those of skill in the art will recognize certain variations, modifications, alterations, additions and sub-combinations thereof. And those not described in detail in this specification are within the skill of the art.

Claims

1. A method for realizing fast recovery of main/standby switching service in a PON access system, the PON access system comprises a main disk and a standby disk, the main disk and the standby disk realize load sharing of service, and open cross-disk LACP link aggregation to protect an uplink, the method is characterized in that the method comprises the following steps:

C. after the main and standby switching, the new main disk detects the port state change of the original main disk, reports the abnormal port information of the aggregation group members, and deletes the corresponding port of the aggregation group members on the new main disk to realize the rapid service recovery;

the step A is preceded by the following operations: setting a load sharing mode, enabling an LACP function switch, and configuring an LACP aggregation link; and the specific operation comprises:

setting a PON access system as a load sharing mode by using a command of a current system, and establishing a networking environment according to corresponding networking;

configuration information is issued on the current master disk to enable the LACP function switch; adding the corresponding uplink port to the same aggregation group according to the port information which is set in the configuration information and used for creating cross-disk LACP link aggregation to form LACP aggregation group member information, and setting an aggregation mode as LACP link aggregation; and realizing configuration synchronization through a system database, synchronizing the information of the LACP aggregation group members to the standby disk, enabling an LACP function switch, and ensuring that an LACP protocol function is started on the standby disk.

2. The method for implementing fast recovery of active/standby switching service in a PON access system according to claim 1, wherein the following operations are further included before step B: before the main/standby switching, the LACP protocols of the main disk and the standby disk are successfully aggregated.

3. The method for implementing fast restoration of active/standby switching service in a PON access system according to claim 1, wherein in step B, after the main disk becomes a new standby disk after being restarted, the method further includes the following operations: synchronizing LACP configuration information from the new master disk, wherein the LACP configuration information comprises an LACP virtual MAC address control switch, an LACP virtual MAC address and LACP configuration data.

4. The method for implementing fast recovery of active/standby switching services in a PON access system as claimed in claim 1, wherein in step C, reporting the information of the abnormal port of the aggregation group member in an interrupt manner.

5. A realization device for fast recovery of main/standby switching service in a PON access system, the PON access system comprises a main disk and a standby disk, the main disk and the standby disk realize load sharing of service, and cross-disk LACP link aggregation is started to protect an uplink, and the realization device is characterized in that: the device comprises a switching chip, a bridge module, an LACP protocol module and a main/standby switching module which are arranged in a main disk and a standby disk, wherein a state detection hardware channel is arranged between the main disk and the standby disk;

the state detection hardware channel is configured to: after the main and standby switching, detecting the port state change of the original main disk, and informing the switching chip of the new main disk of the abnormal port information of the aggregation group member;

the implementation device further comprises a configuration module, configured to: setting a load sharing mode, enabling an LACP function switch, and configuring an LACP aggregation link; and the specific operation steps comprise:

6. The apparatus for implementing fast restoration of active/standby switching services in a PON access system according to claim 5, wherein the apparatus further comprises an aggregation detection module configured to: before the main/standby switching, the LACP protocols of the main disk and the standby disk are successfully aggregated.

7. The apparatus for implementing fast restoration of active/standby switching services in a PON access system according to claim 5, wherein the active/standby switching module controls the master to synchronize LACP configuration information from a new master after restarting, and the LACP configuration information includes an LACP virtual MAC address control switch, an LACP virtual MAC address, and LACP configuration data.

8. The apparatus for implementing fast recovery of active/standby switching services in a PON access system as claimed in claim 5, wherein the switch chip reports the port information of the abnormal aggregation group member to the LACP protocol module in an interrupt manner.