WO2016177116A1

WO2016177116A1 - Network path switching method and device

Info

Publication number: WO2016177116A1
Application number: PCT/CN2016/076424
Authority: WO
Inventors: 李爱民
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-07-20
Filing date: 2016-03-15
Publication date: 2016-11-10
Also published as: CN106375208B; CN106375208A

Abstract

Disclosed is a network path switching method, comprising: when off-line information sent by a master control is received, an on-line single plate acquiring corresponding slot information based on the off-line information; the on-line single plate acquiring bidirectional forwarding detection information corresponding to the slot information; the on-line single plate acquiring a network path identifier corresponding to the determined bidirectional forwarding detection information according to a pre-set mapping relationship between the bidirectional forwarding detection information and the network path identifier; and the on-line single plate switching a current network path of an off-line single plate into a network path corresponding to the network path identifier. Also disclosed is a network path switching device. The present invention improves the switching speed of a network path.

Description

Network path switching method and device

Technical field

The present invention relates to the field of network communications, and in particular, to a network path switching method and apparatus.

Background technique

With the development of network communication technology, in the typical L2VPN network (Layer 2 virtual private network) or L3VPN network (three-layer virtual private network), multiple levels of protection paths are usually deployed, such as PW layer (Pseudo Wire). The point-to-point connection between the pair) the protection path, the tunnel layer protection path, the link layer protection path, etc., for the network path to fail, the network path can be switched to the deployed protection path.

A BFD (bidirectional forwarding detection) protocol is configured to detect the connectivity of the network path. The existing detection mode is to deploy the BFD session on the board. When the network path is abnormal, the network board is switched to the protection path. When the board is offline, the offline board cannot switch the network path. The path is switched to the online board, and the master belongs to the upper control plane. The network path is on the lower-layer forwarding plane. The master control network path switching speed is slow, such as the carrier-class 50ms switching performance cannot be met.

Summary of the invention

The main purpose of the embodiment of the present invention is to provide a network path switching method and device, which is to solve the technical problem that the switching speed of the network path is slow when the board is in an offline state.

To achieve the above objective, a network path switching method provided by an embodiment of the present invention includes the following steps:

After receiving the offline information sent by the master, the online board obtains the corresponding slot information based on the offline information.

Obtaining, by the online board, the bidirectional forwarding detection information corresponding to the slot information;

And obtaining, by the online board, the network path identifier corresponding to the determined bidirectional forwarding detection information, according to the mapping relationship between the preset bidirectional forwarding detection information and the network path identifier;

The online board switches the current network path of the offline board to the network path corresponding to the network path identifier.

Preferably, when the obtained network path identifier includes multiple, the step of the online board switching the current network path of the offline board to the network path corresponding to the network path identifier includes:

Determining, by the online board, a priority of a network path corresponding to each network path identifier;

The online board switches the current network path of the offline board to a network path with a high priority.

Preferably, before the step of obtaining the corresponding slot information based on the offline information, the network path switching method includes:

When the terminal initializes, triggering an offline information receiving instruction to enter an offline information receiving mode;

Or when receiving an offline information receiving instruction input by the user, the terminal enters an offline information receiving mode.

The online board receives the bidirectional forwarding detection information of all the boards in the routing device where the master sends the routing device;

The online board stores the received bidirectional forwarding detection information.

Preferably, the bidirectional forwarding detection information is sent by the main control to the online board when the bidirectional forwarding detection information is updated.

In addition, in order to achieve the above object, the embodiment of the present invention further provides a network path switching apparatus, where the network path switching apparatus includes:

Obtaining a module, configured to acquire corresponding slot information based on the offline information when receiving the offline information sent by the master;

The acquiring module is further configured to acquire bidirectional forwarding detection information corresponding to the slot information;

The acquiring module is further configured to: obtain a network path identifier corresponding to the determined bidirectional forwarding detection information according to a mapping relationship between the preset bidirectional forwarding detection information and the network path identifier;

The switching module is configured to switch the current network path of the offline board to the network path corresponding to the network path identifier.

Preferably, when the acquired network path identifier includes multiple, the switching module includes:

a determining unit, configured to determine a priority of a network path corresponding to each network path identifier;

The switching unit is configured to switch the current network path of the offline board to a network path with a high priority.

Preferably, the network path switching device further includes:

The pre-processing module is configured to trigger an offline information receiving instruction to enter an offline information receiving mode during initialization, or enter an offline information receiving mode upon receiving an offline information receiving instruction input by the user.

Preferably, the network path switching device further includes:

The receiving module is configured to receive the bidirectional forwarding detection information of all the boards in the routing device where the master sends the routing device;

And a storage module, configured to store the received bidirectional forwarding detection information.

Preferably, the bidirectional forwarding detection information is sent by the main control to the receiving module when the bidirectional forwarding detection information is updated.

According to the network path switching method and device of the embodiment of the present invention, the online board obtains the bidirectional forwarding detection information corresponding to the slot information according to the acquired slot information, and then obtains the corresponding network path according to the bidirectional forwarding detection information. Identifying and directly switching the current network path of the offline board to the network path corresponding to the obtained network path identifier. When the board is offline, the other online boards can obtain the slot information of the offline board. And, according to the specific processing operation, the current network path of the offline board is switched to the network path corresponding to the obtained network path identifier, and the network path of the offline board can only be controlled by the master when the board is offline. Switch to the online board to improve the switching speed of the network path.

DRAWINGS

1 is a schematic flowchart of a first embodiment of a network path switching method according to the present invention;

2 is a schematic flowchart of a second embodiment of a network path switching method according to the present invention;

3 is a schematic flowchart of a third embodiment of a network path switching method according to the present invention;

4 is a schematic flowchart of a fourth embodiment of a network path switching method according to the present invention;

FIG. 5 is a schematic diagram of functional modules of a first embodiment of a network path switching apparatus according to the present invention; FIG.

6 is a schematic diagram of functional modules of a second embodiment of a network path switching apparatus according to the present invention;

FIG. 7 is a schematic diagram of functional modules of a third embodiment of a network path switching apparatus according to the present invention.

FIG. 8 is a schematic diagram of functional modules of a fourth embodiment of a network path switching apparatus according to the present invention.

The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.

detailed description

It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The invention provides a network path switching method.

Referring to FIG. 1, FIG. 1 is a schematic flowchart diagram of a first embodiment of a network path switching method according to the present invention.

This embodiment provides a network path switching method, where the network path switching method includes:

In step S10, the online board obtains the corresponding slot information based on the offline information when receiving the offline information sent by the master.

In this embodiment, the manner in which the online board receives the offline information sent by the master control unit includes: receiving, by the online board, the offline information of the master broadcast, and then acquiring the corresponding slot information based on the offline information, or The online board receives offline information that is sent by the master to the preset position of the online board, such as a preset receiving point of the online board, and then obtains corresponding slot information based on the offline information. It can be understood that the main control can be preset to detect the running of each board in real time. In the state, when the master detects that the board is not in the position, the board can be determined to be offline, and then the slot information of the offline board is obtained, and other identifier information of the offline line card is further obtained, and the obtained information is obtained. The slot information and the other identifier information are sent to the other online boards as the offline information, and the corresponding slot information is extracted when the online board receives the offline information sent by the master. In the embodiment of the present invention, the online line card only receives offline information sent by the master in the same routing device. The offline information preferably includes slot information corresponding to the offline board, identification information of the offline line card, bidirectional forwarding detection identifier, and the like.

Step S20, the online board acquires bidirectional forwarding detection information corresponding to the slot information.

In this embodiment, each board stores the bidirectional forwarding detection information of all the boards in the same routing device. According to the foregoing embodiment, the bidirectional forwarding detection information includes slot information corresponding to each board and bidirectional forwarding detection. The identifier, if the slot information and the bidirectional forwarding detection information both contain the slot number of the board, when the online board obtains the slot information, the online board can forward the detection information according to the preset bidirectional information. Querying the two-way forwarding detection information that matches the slot number of the slot information to obtain the corresponding two-way forwarding detection information, where the query mode is preferred for the online board to traverse the preset two-way forwarding detection information, that is, the The online board compares the slot information with the preset bidirectional forwarding detection information, and determines the matching when detecting the bidirectional forwarding detection information that matches the slot number of the received slot information. The detection information is bidirectionally forwarded and the matched bidirectional forwarding detection information is obtained.

In this embodiment, the slot information of each board can be preset to correspond to multiple bidirectional forwarding detection information, and the slot information corresponding to each board is different, then when the slot information acquired by the online board is obtained, And obtaining the corresponding bidirectional forwarding detection information according to the slot information. If the slot information includes multiple bidirectional forwarding detection information, the online board may obtain corresponding multiple bidirectional forwarding detection information. Further, the online board can also receive the slot information of the different offline boards at the same time, and obtain the slot information corresponding to the different offline boards, and obtain the different orders according to the preset bidirectional forwarding detection information. The bidirectional forwarding detection information corresponding to the slot information of the board.

Step S30: The online board obtains the network path identifier corresponding to the determined bidirectional forwarding detection information according to the mapping relationship between the preset bidirectional forwarding detection information and the network path identifier.

In this embodiment, the online board determines the network path identifier corresponding to the bidirectional forwarding detection information according to the mapping relationship between the preset bidirectional forwarding detection information and the network path identifier, that is, the online board traverses the network path identifier. Obtaining the identifier of the determined network path when there is a network path identifier that matches the two-way forwarding detection information and the network path identifier is a corresponding network path identifier of another online board, and further, when When the bidirectional forwarding detection information corresponding to the slot information includes multiple bidirectional forwarding detection information, the online board obtains the network path identifier corresponding to each bidirectional forwarding detection information, that is, the network path acquired by the online board includes multiple pieces.

In this embodiment, corresponding bidirectional forwarding detection information is deployed on each network path in advance, and different network paths correspond to different bidirectional forwarding detection information, and the network path preferably includes a PW layer (pseudo line layer) network path, Tunnel layer network path, link layer network path. Each network path includes corresponding network path identification information, and the network path is stored in association with the network path identification information. Further, sometimes nesting of multiple levels of protection is deployed for the stability of the service, such as PW FRR (pseudo-layer layer fast re-routing) nested TE FRR (traffic engineering fast re-routing, a protection technology), that is, In order to quickly detect the abnormality of the network path, the corresponding level of bidirectional forwarding detection information is deployed for different levels of protection paths, so as to quickly switch to the preset network path. At the same time, the bidirectional forwarding detection information of the network path deployment is unique, that is, one network path corresponds to one bidirectional forwarding detection information. The deployed network path includes: one network path or multiple network paths can be deployed on each board in a routing device, and each network path is configured with unique bidirectional forwarding detection information, and further, in each routing device The inner and outer layers of each board may also be configured with an inner network path and an outer network path. The inner network path and the outer network path have the same primary port information in the board, but different levels of protection ports may be used. Different from each other, the two-way forwarding detection information associated with each other can be misinterpreted, that is, when the determined slot information is received, the bidirectional forwarding detection information can be extracted according to the slot information, and the detection information is forwarded according to the bidirectional forwarding information. The network path can be determined without mis-switching due to the inner and outer network paths of the same board, which improves the accuracy of the handover.

Step S40, the online board switches the current network path of the offline board to the obtained The network path identifies the corresponding network path.

In this embodiment, the network path is a protection network path or a backup network path of the offline board, that is, the network path identifier corresponding to the bidirectional forwarding detection information is configured by using a primary path and an alternate path. When the path is faulty, the online board is switched to the standby path.

In this embodiment, the implementation manner of step S40 includes:

1) In the first mode, when the bidirectional forwarding detection information corresponding to the slot information is a bidirectional forwarding detection information, the online board obtains only one network path identifier, and then the online board is located. The current network path of the offline board is switched to the network path corresponding to the obtained network path identifier.

2) In the second step, when the slot information corresponding to the offline board obtained by the online board includes the slot information of the multiple offline boards, at this time, according to the bidirectional forwarding detection information corresponding to the slot information, The network path identifier obtained by the online board includes multiple network identifiers. It can be understood that each network identifier corresponds to each two-way forwarding detection information, and the online board switches the current network path of the offline board to the obtained network board. The step of the network path corresponding to the network path includes: determining, by the online board, a network path identifier corresponding to each bidirectional forwarding detection information; and then, switching each offline board to a corresponding network path according to each network path identifier. Identify the corresponding network path.

3) In the third embodiment, when the bidirectional forwarding detection information corresponding to the slot information is multiple bidirectional forwarding detection information, if multiple network paths are deployed on the board in advance, it can be known from the foregoing embodiment that one slot information corresponds to The plurality of network paths are forwarded in a plurality of directions, and the plurality of network paths include a plurality of network paths of the same level, or different network paths (such as an inner network path and an outer network path deployed by a single board), which is understandable. When the network path includes a multi-layer network path, such as a tunnel layer network path and a link layer network path, different bidirectional forwarding detection information is preset according to the two network paths, and the offline board is received. In the slot information, the online board can traverse the preset bidirectional forwarding detection information, obtain the network path identifier corresponding to the determined bidirectional forwarding detection information, and obtain the offline board according to the network path identifier corresponding to the bidirectional forwarding detection information. The current network path is switched to the corresponding network path identifier. In the network path. In the traditional switching mode, when the board is offline, the online board obtains the network path identifier of the offline board, and directly switches the current network path of the offline board to the network path corresponding to the obtained network path identifier. There is a drawback in the switching mode. When the network path of the offline board includes different levels of network paths, the network paths of different levels may be switched, resulting in incorrect switching of the network path. In this embodiment, different bidirectional forwarding detection information is configured according to the network path of different levels, and the online board obtains the bidirectional forwarding detection information corresponding to the slot information when receiving the slot information of the offline board. At that time, it is possible to determine which level of the network path to switch, thereby improving the accuracy of the network path switching.

In the network path switching method, the online board obtains the bidirectional forwarding detection information corresponding to the slot information according to the obtained slot information, and then obtains the corresponding network path identifier according to the bidirectional forwarding detection information, and The current network path of the offline board is directly switched to the network switching path corresponding to the obtained network path identifier. When the board is offline, the other online boards can obtain the slot information of the offline board. If the current network path of the offline board is switched to the network switching path corresponding to the obtained network path identifier, the network path of the offline board can be switched to online only through the master control. The board improves the switching speed of the network path.

Further, in order to increase the intelligence of the network path switching, a second embodiment of the network path switching method of the present invention is proposed based on the first embodiment. In this embodiment, referring to FIG. 2, when the acquired network path identifier includes multiple The step S40 includes:

Step S41: The online board determines a priority of a network path corresponding to each network path identifier.

In step S42, the online board switches the current network path of the offline board to a network path with a high priority.

In this embodiment, when the obtained network path identifier includes multiple, the network path indicating that the offline board can be switched includes multiple, that is, the protection path of the offline board includes multiple, and the online The board preferably compares the network paths corresponding to the respective acquired network path identifiers. The priority of the path, the priority of the network path of the network path or the preset priority of the network path. When the online board determines the network path with a high priority, the current offline board can be The network path is switched to a network path with a high priority.

Further, in order to increase the intelligence of the network path switching, a third embodiment of the network path switching method of the present invention is proposed based on the first embodiment. In this embodiment, referring to FIG. 3, before the step S10, the network path The switching methods include:

Step S50, the terminal triggers an offline information receiving instruction to enter an offline information receiving mode when initializing, or enters an offline information receiving mode when receiving an offline information receiving instruction input by a user.

In this embodiment, when the online board receives the offline information receiving instruction, the online board starts a preset receiving point and enters an offline information receiving mode; or presets to receive an offline order during initialization. The mode of the board, that is, the offline information receiving instruction is triggered at the time of initialization to enter the offline information receiving mode. The method of receiving the offline information receiving mode corresponding to the offline board is preferably implemented in a software manner, that is, when the online board is initialized, the sensing event of the offline information of the offline board is first registered, for example, configuring one in the board. Receiving point, the configured receiving point is only used to receive offline information sent by the master. It can be understood that only the offline information corresponding to the offline board sent by the master can be received, so that the online board can quickly respond to the switching process and improve the switching speed of the network path. Or, when receiving the offline information command triggered by the user, the online board moves the preset receiving point and enters the offline information receiving mode.

Further, in order to increase the intelligence of the network path switching, a fourth embodiment of the network path switching method of the present invention is proposed based on the first embodiment. In this embodiment, referring to FIG. 4, before the step S10, the network path The switching methods include:

Step S60, the online board receives the bidirectional forwarding detection information of all the boards in the routing device where the master sends the routing device;

In this embodiment, the online board receives the two-way forwarding detection relationship generated and sent by each board between the boards of the same routing device and the boards of other routing devices. Forward detection information. That is, each board in the routing device establishes a bidirectional forwarding detection relationship with the other routing devices through the master control, and the master control establishes a bidirectional forwarding detection relationship between each board and other routing devices, and preferably establishes a bidirectional forwarding detection relationship by using a three-way handshake manner, and The master generates bidirectional forwarding detection information according to the established bidirectional forwarding detection relationship and sends the information to the online board. Further, the bidirectional forwarding detection information is preferably configured by using a HASH (Hash) management manner to configure a primary and secondary HASH key value, that is, the primary and secondary HASH key values of the bidirectional forwarding detection information are respectively set to a bidirectional forwarding detection identifier and a single board slot. The bit number information, that is, the user can query the corresponding bidirectional forwarding detection information by using the bidirectional forwarding detection identifier and the slot number information.

Step S70: The online board stores the received bidirectional forwarding detection information.

In this embodiment, when the online board receives the bidirectional forwarding detection information sent by the master control, the received bidirectional forwarding detection information is saved, and the storage location may be preset storage on each board in the routing device. Space, or the default storage space in the routing device.

Further, in order to improve the flexibility of the network path switching, in the embodiment, the bidirectional forwarding detection information is sent by the main control to the online board when the bidirectional forwarding detection information is updated. That is, the master detects that a new bidirectional forwarding detection relationship is established between each board in the same routing device and a board in another routing device, and generates new bidirectional forwarding detection information according to the newly established bidirectional forwarding detection relationship. And sending the newly generated bidirectional forwarding detection information to the online board, so that the online board stores the bidirectional forwarding detection information.

The invention further provides a network path switching device.

Referring to FIG. 5, FIG. 5 is a schematic diagram of functional modules of a preferred embodiment of a network path switching apparatus according to the present invention.

It should be emphasized that, for those skilled in the art, the functional module diagram shown in FIG. 5 is merely an exemplary diagram of a preferred embodiment, and those skilled in the art will surround the functional modules of the network path switching apparatus shown in FIG. The new function modules can be easily supplemented; the names of the function modules are custom names, which are only used to assist in understanding the various program function blocks of the network path switching device, and are not used to limit the technical solution of the present invention. The core is the function that each functional module of the defined name has to achieve.

The embodiment provides a network path switching device, where the network path switching device includes:

The obtaining module 10 is configured to acquire corresponding slot information based on the offline information when receiving the offline information sent by the master;

In this embodiment, the manner of receiving the offline information sent by the master control includes receiving the offline information of the master broadcast, and then the acquiring module 10 acquires the corresponding slot information based on the offline information, or receives the master control transmission. The offline information of the location of the acquisition module 10 (such as the preset receiving point of the acquisition module 10) is obtained, and then the acquisition module 10 acquires the corresponding slot information based on the offline information. It can be understood that the main control can detect the running status of each board in real time. When the main control detects that the board is not in the position, the board can be determined to be offline, and then the slot of the offline board is obtained. And obtaining the other identification information of the offline line card, and sending the acquired slot information and the other identifier information together as offline information to other acquiring modules 10 for the foregoing manner. When receiving the offline information sent by the master, the module 10 extracts the corresponding slot information. In the embodiment of the present invention, the acquiring module 10 only receives offline information that is sent by the master in the same routing device. The offline information preferably includes slot information corresponding to the offline board, identification information of the offline line card, bidirectional forwarding detection identifier, and the like.

The acquiring module 10 is further configured to acquire bidirectional forwarding detection information corresponding to the slot information.

In this embodiment, each board stores the bidirectional forwarding detection information of all the boards in the same routing device. According to the foregoing embodiment, the bidirectional forwarding detection information includes the slot information corresponding to each board and the bidirectional forwarding detection identifier. If the slot information and the bidirectional forwarding detection information include the slot number of the board, the acquiring module 10 may query the preset bidirectional forwarding detection information when the slot information is obtained. And the bidirectional forwarding detection information that is matched with the slot number of the slot information to obtain the corresponding bidirectional forwarding detection information, where the obtaining manner is that the obtaining module 10 traverses the preset bidirectional forwarding detection information, that is, the obtaining The module 10 compares the slot information with the preset bidirectional forwarding detection information, and determines the matching two-way when detecting the bidirectional forwarding detection information that matches the slot number of the received slot information. Forwarding the detection information and obtaining the matched bidirectional forwarding detection information.

In this embodiment, the slot information of each board may be preset to correspond to multiple bidirectional forwarding detection information, and the slot information corresponding to each board is different, then when the acquiring module 10 obtains the slot information, And obtaining the corresponding bidirectional forwarding detection information according to the slot information. If the slot information includes multiple bidirectional forwarding detection information, the acquiring module 10 may obtain corresponding multiple bidirectional forwarding detection information. Further, the acquiring module 10 can also receive slot information of different offline boards at the same time, and obtain the slot information corresponding to different offline boards, and obtain different single orders according to the preset bidirectional forwarding detection information. The bidirectional forwarding detection information corresponding to the slot information of the board.

The obtaining module 10 is further configured to obtain a network path identifier corresponding to the determined bidirectional forwarding detection information according to a mapping relationship between the preset bidirectional forwarding detection information and the network path identifier;

In this embodiment, the network path identifier corresponding to the bidirectional forwarding detection information is determined according to the mapping relationship between the preset bidirectional forwarding detection information and the network path identifier, that is, the obtaining module 10 traverses the network path identifier, when And obtaining the identifier of the determined network path when the network path identifier of the two-way forwarding detection information is matched, and the network path identifier is a corresponding network path identifier of another online board, and further, when the slot information is corresponding to When the bidirectional forwarding detection information includes a plurality of bidirectional forwarding detection information, the obtaining module 10 acquires the network path identifier corresponding to each bidirectional forwarding detection information, that is, the network path acquired by the obtaining module 10 includes multiple pieces.

In this embodiment, corresponding bidirectional forwarding detection information is deployed to each network path in advance, and different network paths correspond to different bidirectional forwarding detection information, and the network path preferably includes a PW (pseudo-layer layer) layer network path, Tunnel layer network path, link layer network path. Each network path includes corresponding network path identification information, and the network path is stored in association with the network path identification information. Further, sometimes nesting of multiple levels of protection is deployed for the stability of the service, such as PW FRR (pseudo-layer layer fast re-routing) nested TE FRR (traffic engineering fast re-routing, a protection technology), that is, In order to quickly detect the abnormality of the network path, the corresponding level of bidirectional forwarding detection information is deployed for different levels of protection paths, so as to quickly switch to the preset network path. At the same time, the bidirectional forwarding detection information of the network path deployment is unique, that is, one network path corresponds to one bidirectional forwarding detection signal. interest. The deployed network path includes: one network path or multiple network paths can be deployed on each board in a routing device, and each network path is configured with unique bidirectional forwarding detection information, and further, in each routing device The inner and outer layers of each board may also be configured with an inner network path and an outer network path. The inner network path and the outer network path have the same primary port information in the board, but different levels of protection ports may be used. Different from each other, the two-way forwarding detection information associated with each other can be misinterpreted, that is, when the determined slot information is received, the bidirectional forwarding detection information can be extracted according to the slot information, and the detection information is forwarded according to the bidirectional forwarding information. The network path can be determined without mis-switching due to the inner and outer network paths of the same board, which improves the accuracy of the handover.

The switching module 20 is configured to switch the current network path of the offline board to the network path corresponding to the network path identifier.

In this embodiment, the network path is a protection network path or a backup network path of the offline board, that is, the network path identifier corresponding to the bidirectional forwarding detection information is configured by using a primary path and an alternate path. When the path fails, the switching module 20 switches to the alternate path. In this embodiment, the switching module 20 switches the current network path of the offline board to the network path corresponding to the obtained online path of the network board that is included in the network path.

1) In the first mode, when the bidirectional forwarding detection information corresponding to the slot information is a bidirectional forwarding detection information, the acquiring module 10 obtains only one network path identifier, and then the switching module 20 The current network path of the offline board is switched to the network path corresponding to the acquired network path identifier.

2) In the second mode, when the slot information corresponding to the offline board obtained by the obtaining module 10 includes the slot information of the multiple offline boards, the bidirectional forwarding detection information corresponding to the slot information is used. The network path identifier obtained by the obtaining module 10 includes multiple network identifiers. It can be understood that each network identifier corresponds to each two-way forwarding detection information, and the switching module 20 switches the current network path of the offline board to obtain The network path corresponding to the network path identifier includes: first determining a network path identifier corresponding to each bidirectional forwarding detection information; and then, the switching module 20 switches each offline board according to each network path identifier to The corresponding network path identifies the corresponding network path.

3) In the third embodiment, when the bidirectional forwarding detection information corresponding to the slot information is multiple bidirectional forwarding detection information, if multiple network paths are deployed on the board in advance, it can be known from the foregoing embodiment that one slot information corresponds to The plurality of network paths are forwarded in a plurality of directions, and the plurality of network paths include a plurality of network paths of the same level, or different network paths (such as an inner network path and an outer network path deployed by a single board), which is understandable. When the network path includes a multi-layer network path, such as a tunnel layer network path and a link layer network path, different bidirectional forwarding detection information is preset according to the two network paths, and the acquiring module 10 obtains When the information about the slot of the offline board is obtained, the acquiring module 10 may obtain the network path identifier corresponding to the determined bidirectional forwarding detection information according to the network path identifier corresponding to the bidirectional forwarding detection information by traversing the preset bidirectional forwarding detection information. And the switching module 20 switches the current network path of the offline board to the network corresponding to the acquired network path identifier. In the network path. In the traditional switching mode, when the board is offline, the acquiring module 10 obtains the network path identifier of the offline board, and the switching module 20 directly switches the current network path of the offline board to the corresponding network path identifier. In the network path, this type of switching has a drawback. When the network path of the offline board includes different levels of network paths, different levels of network paths may be switched, resulting in incorrect switching of the network path. In this embodiment, different bidirectional forwarding detection information is configured according to different levels of network paths, and the obtaining module 10 obtains bidirectional forwarding corresponding to the slot information when acquiring the slot information of the offline board. When detecting information, it can determine which level of network path to switch, thereby improving the accuracy of network path switching.

In the network path switching device of the present embodiment, the online board obtains the bidirectional forwarding detection information corresponding to the slot information according to the acquired slot information, and then obtains the corresponding network path identifier according to the bidirectional forwarding detection information, and The current network path of the offline board is directly switched to the network switching path corresponding to the obtained network path identifier. When the board is offline, the other online boards can obtain the slot information of the offline board. If the current network path of the offline board is switched to the network switching path corresponding to the obtained network path identifier, the network path of the offline board can only be controlled by the master. Switch to the online board to improve the switching speed of the network path.

Further, in order to increase the intelligence of the network path switching, a second embodiment of the network path switching apparatus of the present invention is proposed based on the first embodiment. In this embodiment, referring to FIG. 6, when the acquired network path identifier includes multiple The switching module 20 includes:

The determining unit 21 is configured to determine a priority of the network path corresponding to each network path identifier;

The switching unit 22 is configured to switch the current network path of the offline board to a network path with a high priority.

In this embodiment, when the obtained network path identifier includes multiple, the network path indicating that the offline board can be switched includes multiple, that is, the protection path of the offline board includes multiple, then the determining The unit 21 preferably compares the priority of the network path corresponding to each acquired network path identifier, the priority includes a network load condition of the network path or a preset priority of the network path, and the determining unit 21 determines the priority. When the network path is high, the switching unit 22 can switch the current network path of the offline board to the network path with high priority.

Further, in order to increase the intelligence of the network path switching, a third embodiment of the network path switching device of the present invention is proposed based on the first embodiment. In this embodiment, referring to FIG. 7, the network path switching device further includes:

The pre-processing module 30 is configured to trigger an offline information receiving instruction to enter an offline information receiving mode upon initialization, or enter an offline information receiving mode upon receiving an offline information receiving instruction input by the user.

In this embodiment, preferably, when the offline information receiving instruction is received, the preset receiving point is started, and the offline information receiving mode is entered; or the mode of receiving the offline board is preset before initializing, that is, the pre-processing module 30 triggers an offline information receiving instruction at initialization to enter an offline information receiving mode. The manner of receiving the offline information receiving mode corresponding to the offline board is preferably implemented by means of software, that is, the pre-processing module 30 first registers and detects when initializing. The sensing event of the offline information of the offline board, such as configuring a receiving point in the board, the receiving point of the configuration is only used to receive the offline information sent by the master. It can be understood that only the offline information corresponding to the offline board sent by the master can be received, and the switching process can be quickly responded, and the switching speed of the network path is improved. Or, when receiving the offline information command triggered by the user, the pre-processing module 30 starts a preset receiving point and enters an offline information receiving mode.

Further, in order to increase the flexibility of the network path switching, a fourth embodiment of the network path switching device of the present invention is proposed based on the first embodiment. In this embodiment, referring to FIG. 8, the network path switching device further includes:

The receiving module 40 is configured to receive the bidirectional forwarding detection information of all the boards in the routing device where the master sends the routing device;

In this embodiment, the receiving module 40 receives the bidirectional forwarding detection information generated and sent by the master based on the bidirectional forwarding detection relationship between the boards of the same routing device and the boards of other routing devices. That is, each board in the routing device establishes a bidirectional forwarding detection relationship with the other routing devices through the master control, and the master control establishes a bidirectional forwarding detection relationship between each board and other routing devices, and preferably establishes a bidirectional forwarding detection relationship by using a three-way handshake manner, and The master generates bidirectional forwarding detection information according to the established bidirectional forwarding detection relationship and sends the information to the receiving module 40. Further, the bidirectional forwarding detection information is preferably configured by using a HASH (Hash) management manner to configure a primary and secondary HASH key value, that is, the primary and secondary HASH key values of the bidirectional forwarding detection information are respectively set to a bidirectional forwarding detection identifier and a single board slot. The bit number information, that is, the user can query the corresponding bidirectional forwarding detection information by using the bidirectional forwarding detection identifier and the slot number information.

The storage module 50 is configured to store the received bidirectional forwarding detection information.

In this embodiment, when the receiving module 40 receives the bidirectional forwarding detection information sent by the master control, the storage module 50 stores the received bidirectional forwarding detection information, and the storage module 50 stores the location in the routing device. The preset storage space of each board or the preset storage space in the routing device.

Further, in order to improve the flexibility of the network path switching, in the embodiment, the bidirectional forwarding detection information is sent by the main control to the receiving when the bidirectional forwarding detection information is updated. Module 40. That is, the master establishes a new bidirectional forwarding detection relationship between each board in the same routing device and a board in another routing device, and generates a new bidirectional forwarding detection according to the newly established bidirectional forwarding detection relationship. And sending the newly generated bidirectional forwarding detection information to the receiving module 40, so that the storage module 50 stores the bidirectional forwarding detection information.

It is to be understood that the term "comprises", "comprising", or any other variants thereof is intended to encompass a non-exclusive inclusion, such that a process, method, article, or system that comprises a plurality of elements includes not only those elements. It also includes other elements that are not explicitly listed, or elements that are inherent to such a process, method, item, or system. An element defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in a process, method, article, or system that includes the element, without further limitation.

The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the foregoing embodiment method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is better. Implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and the equivalent structure or equivalent process transformations made by the description of the present invention and the drawings are directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of the present invention.

Industrial applicability

As described above, the network path switching method and apparatus provided by the embodiments of the present invention have the following beneficial effects: when the board is offline, the other online boards can obtain the slot information of the offline board first, and according to the specific processing. If the current network path of the offline board is switched to the network path of the obtained network path identifier, the network path of the offline board can be switched to the online board only by the master. When the network switching performance is improved, it is also possible to switch according to different detection levels when the network path has nested protection, thereby improving the stability of the network switching.

Claims

A network path switching method, the network path switching method comprising the following steps:

After receiving the offline information sent by the master, the online board obtains the corresponding slot information based on the offline information.

Obtaining, by the online board, the bidirectional forwarding detection information corresponding to the slot information;

And obtaining, by the online board, the network path identifier corresponding to the determined bidirectional forwarding detection information, according to the mapping relationship between the preset bidirectional forwarding detection information and the network path identifier;

The online board switches the current network path of the offline board to the network path corresponding to the network path identifier.
The network path switching method according to claim 1, wherein the online board switches the current network path of the offline board to the network path identifier corresponding to the network path identifier. The steps in the network path include:

Determining, by the online board, a priority of a network path corresponding to each network path identifier;

The online board switches the current network path of the offline board to a network path with a high priority.
The network path switching method according to claim 1 or 2, wherein, before receiving the offline information sent by the master, the network board obtains the corresponding slot information based on the offline information, the network Path switching methods include:

When the terminal initializes, triggering an offline information receiving instruction to enter an offline information receiving mode;

Or when receiving an offline information receiving instruction input by the user, the terminal enters an offline information receiving mode.
The network path switching method according to claim 1 or 2, wherein, before receiving the offline information sent by the master, the network board obtains the corresponding slot information based on the offline information, the network Path switching methods include:

Receiving, by the online board, all the boards in the routing device where the master sends the routing device Bidirectional forwarding detection information;

The online board stores the received bidirectional forwarding detection information.
The network path switching method according to claim 4, wherein the bidirectional forwarding detection information is sent by the main control to the online board when the bidirectional forwarding detection information is updated.
A network path switching device, where the network path switching device includes:

Obtaining a module, configured to acquire corresponding slot information based on the offline information when receiving the offline information sent by the master;

The acquiring module is further configured to acquire bidirectional forwarding detection information corresponding to the slot information;

The acquiring module is further configured to: obtain a network path identifier corresponding to the determined bidirectional forwarding detection information according to a mapping relationship between the preset bidirectional forwarding detection information and the network path identifier;

The switching module is configured to switch the current network path of the offline board to the network path corresponding to the network path identifier.
The network path switching device of claim 6, wherein when the acquired network path identifier comprises a plurality, the switching module comprises:

a determining unit, configured to determine a priority of a network path corresponding to each network path identifier;

The switching unit is configured to switch the current network path of the offline board to a network path with a high priority.
The network path switching device according to claim 6 or 7, wherein the network path switching device further comprises:

The pre-processing module is configured to trigger an offline information receiving instruction to enter an offline information receiving mode during initialization, or enter an offline information receiving mode upon receiving an offline information receiving instruction input by the user.
The network path switching device according to claim 6 or 7, wherein the network path switching device further comprises:

The receiving module is configured to receive the bidirectional forwarding detection information of all the boards in the routing device where the master sends the routing device;

And a storage module, configured to store the received bidirectional forwarding detection information.
The network path switching device according to claim 9, wherein said bidirectional forwarding detection information is transmitted by said main control to said receiving module when said bidirectional forwarding detection information is updated.