CN106878051A - A kind of multi-computer back-up implementation method and device - Google Patents
A kind of multi-computer back-up implementation method and device Download PDFInfo
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- CN106878051A CN106878051A CN201611170254.3A CN201611170254A CN106878051A CN 106878051 A CN106878051 A CN 106878051A CN 201611170254 A CN201611170254 A CN 201611170254A CN 106878051 A CN106878051 A CN 106878051A
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- access device
- target
- session information
- user
- terminal user
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2854—Wide area networks, e.g. public data networks
- H04L12/2856—Access arrangements, e.g. Internet access
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
Abstract
The application provides a kind of multi-computer back-up implementation method and device, and methods described includes：When the target access device is main access device, and when detecting target terminal user certification by reaching the standard grade, the corresponding session session information of the target terminal user is generated；The corresponding session information of the target terminal user is synchronized to the EVPN neighbours of the target access device, so that the EVPN neighbours of the target access device preserve the session information of the target terminal user.The scalability of data backup can be improved using the embodiment of the present application.
Description
Technical field
The application is related to network communication technology field, more particularly to a kind of multi-computer back-up implementation method and device.
Background technology
With the high speed development of the network communications technology, how requirement more and more higher of the user to network reliability ensures to use
The interrupted transmission of family business datum, a problem as urgent need to resolve.
Under the network environment of traditional single gateway, once there is link or node failure, the business of all users is all
Can interrupt.
The content of the invention
The application provides a kind of multi-computer back-up implementation method and device, to improve the scalability of data backup.
According to the first aspect of the embodiment of the present application, there is provided a kind of multi-computer back-up implementation method, be applied to include two or
Target access device in the networking of two or more access device, described two or two or more access device includes a master
Access device, remaining access device is standby access device, and it is virtual to set up ether between the main access device and standby access device
Private network EVPN neighborhoods；Methods described includes：
It is raw when the target access device is main access device, and when detecting target terminal user certification by reaching the standard grade
Into the corresponding session session information of the target terminal user；
The corresponding session information of the target terminal user is synchronized to the EVPN neighbours of the target access device,
So that the EVPN neighbours of the target access device preserve the session information of the target terminal user.
According to the second aspect of the embodiment of the present application, there is provided a kind of multi-computer back-up realizes device, be applied to include two or
Target access device in the networking of two or more access device, it is characterised in that described two or two or more access device
Include a main access device, remaining access device is standby access device, between the main access device and standby access device
Set up ether Virtual Private Network EVPN neighborhoods；Described device includes：
Generation unit, for being main access device when the target access device, and detects target terminal user certification
During by reaching the standard grade, the corresponding session session information of the target terminal user is generated；
Transmitting element, sets for the corresponding session information of the target terminal user to be synchronized into the target access
Standby EVPN neighbours, so that the EVPN neighbours of the target access device preserve the session information of the target terminal user.
Using the embodiment of the present application, by determining a main access in two included in networking or two access devices
Equipment, EVPN neighborhoods are set up between main access device and standby access device, when target access device is main access device, and
When detecting target terminal user certification by reaching the standard grade, the corresponding session information of generation target terminal user, and target is used
Terminal corresponding session information in family is synchronized to the EVPN neighbours of target access device, so that the EVPN of target access device is adjacent
The session information for preserving the target terminal user is occupied, it is thus possible to realize access device 1：The data backup of N, improves number
According to the scalability of backup.
Brief description of the drawings
Fig. 1 is a kind of schematic flow sheet of multi-computer back-up implementation method that the embodiment of the present application is provided；
Fig. 2 is a kind of configuration diagram of concrete application scene that the embodiment of the present application is provided；
Fig. 3 is the structural representation that a kind of multi-computer back-up that the embodiment of the present application is provided realizes device；
Fig. 4 is the structural representation that another multi-computer back-up that the embodiment of the present application is provided realizes device；
Fig. 5 is the structural representation that another multi-computer back-up that the embodiment of the present application is provided realizes device；
Fig. 6 is the structural representation that another multi-computer back-up that the embodiment of the present application is provided realizes device.
Specific embodiment
In order that those skilled in the art more fully understand the technical scheme in the embodiment of the present application, and make the application reality
Applying the above-mentioned purpose of example, feature and advantage can be more obvious understandable, below in conjunction with the accompanying drawings to technical side in the embodiment of the present application
Case is described in further detail.
Fig. 1 is referred to, is a kind of schematic flow sheet of multi-computer back-up implementation method that the embodiment of the present application is provided, wherein,
The multi-computer back-up implementation method can apply to the target access device in the networking for include two or more access devices,
As shown in figure 1, the multi-computer back-up implementation method may comprise steps of：
Step 101, when target access device is main access device, and detect target terminal user certification by reaching the standard grade
When, the corresponding session information of generation target terminal user.
In the embodiment of the present application, target access device is simultaneously not specific to the access device of a certain fixation, and can be above-mentioned two
Any access device in individual or two or more access device；Similarly, target terminal user and it is not specific to the user of a certain fixation
Terminal, but any user terminal by above-mentioned two or two access device access networkings is may refer to, the application is implemented
Example is subsequently no longer repeated.
In the embodiment of the present application, in order to improve networking reliability, two or more accesses can be disposed in networking
A main access device can be included in equipment, this two or two access devices, remaining access device is standby access device, main
(Ethernet Virtual Private Network, ether is virtually special to set up EVPN between access device and standby access device
With net) neighborhood, to realize the data backup between active and standby access device.
What deserves to be explained is, in the embodiment of the present application, the main access in above-mentioned two or two or more access device sets
It is standby to be determined by electing by above-mentioned two or two or more access device, it is also possible to be matched somebody with somebody manually by user (such as keeper)
Put, it implements and does not repeat herein.
In the embodiment of the present application, when user terminal (such as VM (Virtual Machine, virtual machine)) is reached the standard grade, it is necessary to logical
Main access device forwarding authentication request packet is crossed, and the authentication response report that certificate server is returned is received by main access device
Text, and determined whether to reach the standard grade according to authentication result.
Correspondingly, when target access device is main access device, and when detecting target terminal user certification by reaching the standard grade,
Target access device needs corresponding session (session) information of generation target terminal user.
Wherein, target access device is that target terminal user generates implementing for session information, and session
The particular content of information may refer to associated description of the prior art, and the embodiment of the present application will not be described here.
Additionally, in the embodiment of the present application, when target access device detects target terminal user certification by reaching the standard grade, removing
Need to generate outside above-mentioned session information, in addition it is also necessary to generate ARP (the Address Resolution of target terminal user
Protocol, address resolution protocol) information and routing iinformation, and the routing iinformation of generation is published to remote equipment, its is specific
Realization may refer to associated description of the prior art, and the embodiment of the present application will not be described here.
Step 102, the EVPN neighbours that the corresponding session information of target terminal user is synchronized to target access device,
So that the EVPN neighbours of target access device preserve the session information of target terminal user.
In the embodiment of the present application, in order to realize the data backup between active and standby access device, as the mesh of main access device
Mark access device is after the corresponding session information of generation target terminal user, it is necessary to the session information is synchronized to certainly
EVPN neighbours' (being each standby access device in the embodiment of the present application) of body, to realize the backup of session information.
In the embodiment of the present application, because only main access device needs to carry out data forwarding in above-mentioned networking, therefore, it is standby to access
When equipment receives main access device synchronous session information, corresponding ARP information and routing iinformation can not be generated.
Correspondingly, in the one of embodiment of the application, when target access device is standby access device, and master is received
During the session information of the synchronous user terminal of access device, for the user terminal session information sets backup mark, and
Corresponding session list items are generated according to session information；Wherein, the backup is identified for indicating the access device session
Information is the session information that main access device synchronously comes.
In this embodiment, when standby access device receives the synchronous session information of main access device, standby access sets
Standby can be that the session information sets backup mark (concrete form of backup mark can make an appointment).
For the session information for being provided with backup mark, standby access device can be refused to be given birth to according to the session information
Into corresponding ARP information and routing iinformation, and only need to preserve the session information for receiving.
Wherein, in this embodiment, standby access device can be corresponding according to the session information generation for receiving
Session list items, and the synchronous session information of main access device is preserved in the form of session list items.
What deserves to be explained is, in this embodiment, standby access device receives the synchronous session letters of main access device
Breath, and for the session information set backup mark after, it is also possible to ARP information and route are carried out according to the session information
The generation of information, and after the session information generation routing iinformation that standby access device synchronously comes according to main access device, can
The routing iinformation is distributed into remote equipment or the routing iinformation is not published into remote equipment.
Wherein, in the case where standby access device is published to remote equipment, remote equipment can be according to specific strategy choosing
The message that user terminal is sent to by main access device or standby access device is selected, it implements and does not repeat herein.
It can be seen that, in the method flow shown in Fig. 1, determine by two or more access devices in networking
Main access device, by setting up EVPN neighbours between main access device and standby access device, realizes between active and standby access device
Data backup, it is thus possible to realize access device 1：The data backup of N (N is the integer more than or equal to 1), improves data standby
The scalability of part.
Further, in the embodiment of the present application, it is contemplated that in special scenes, the network access of user terminal need into
Row traffic statistics, as rates ground, in order to ensure the reliability of traffic statistics, it is to avoid due to the event of single access device
Barrier causes traffic statistics to be lost, and in above-mentioned networking, traffic statistics are also required to realize multi-computer back-up.
Correspondingly, in the embodiment of the present application, when target access device is main access device, can be to user terminal
Flow is counted, and traffic statistics are periodically synchronized to the EVPN neighbours of target access device, that is, be synchronized to standby
Access device, the traffic statistics for receiving are preserved by standby access device.
Further, in the embodiment of the present application, when target access device is main access device, and targeted customer is detected
, it is necessary to delete the forwarding-table item information of the target terminal user of local preservation when terminal is offline, and to target access device
EVPN neighbours send the offline announcement information for target terminal user, so that the EVPN neighbours of target access device delete local
The session information of the target terminal user of preservation.
Specifically, in this embodiment, when main access device detect user terminal it is offline when, main access device is on the one hand
Need the forwarding-table item information of the local user terminal for preserving of deletion, such as ARP information, FIB (Forward Information
DataBase, forwarding information storehouse) etc., on the other hand, it is necessary to notify that each standby access device user terminal is offline, standby connect so that each
Enter the session information that equipment deletes the local user terminal for preserving.
Further, in the embodiment of the present application, connect when target access device is confirmed as new master by standby access device
When entering equipment, target access device can generate corresponding ARP information according to the session information of the local user terminal for preserving
And routing iinformation, and the routing iinformation is distributed to remote equipment.
Specifically, in this embodiment, when main access device occurs equipment fault, it is necessary to from standby access device again
Determine a new main access device.
Wherein, the new main access device can be determined by each standby access device by electing, it is also possible to manual by user
Configuration.
For example, by taking user's manual configuration as an example, user can configure each in each access device in advance in above-mentioned networking
The priority of access device, after networking brings into operation, each access device can give tacit consent to current priority highest access device
It is main access device, remaining access device is standby access device；When a certain moment, main access device generation equipment fault, respectively
Standby access device will can set except the access of highest priority in other access devices of the access device of the generation equipment fault
It is standby that new main access device is determined.
In this embodiment, when target access device is defined as new main access device by standby access device, target connects
Entering equipment can generate corresponding ARP information and routing iinformation, target according to the session information of the local user terminal for preserving
, it is necessary to the routing iinformation is published into remote equipment after access device generation ARP information and routing iinformation, so that remote equipment
Corresponding routing iinformation is updated, the message of target terminal user is sent to by the new main access device.
Additionally, in this embodiment, when target access device turns into new main access device, can be according to the method described above
Traffic statistics by the session information of newly-generated user terminal and new statistics described in flow etc. are synchronized to
EVPN neighbours, are backed up by EVPN neighbours.
Wherein, the EVPN neighbours between new main access device and standby access device can be true in new main access device
Set up after fixed, it is also possible to be actually determined foundation in new main access device, the embodiment of the present application is not limited this.
In order that those skilled in the art more fully understand the technical scheme that the embodiment of the present application is provided, with reference to specific
Application scenarios are described to the technical scheme that the embodiment of the present application is provided.
Fig. 2 is referred to, is a kind of configuration diagram of concrete application scene that the embodiment of the present application is provided, as shown in Fig. 2
In the application scenarios, with above-mentioned networking as BRAS, (Broadband Remote Access Server, broad band remote accesses clothes
Business device) as a example by networking, it is assumed that BRAS networkings include 3 BRAS equipments (BRAS equipment 1, BRAS equipment 2 and BRAS equipment 3),
And BRAS equipment 1 is main BRAS equipment, BRAS equipment 1 passes through BGP (Border between BRAS equipment 2 and BRAS equipment 3 respectively
Gateway Protocol) agreement sets up EVPN neighbours (correspondingly, BRAS equipment 1, BRAS equipment 2 and BRAS equipment 3 can divide
Not as in EVPN networks VTEP (VXLAN (and Virtual Extensible Local Area Network, it is virtual expansible
LAN) Tunneling End Point, VXLAN tunneling termination) 1, VTEP2 and VTEP3), main BRAS equipment sets with standby BRAS
Data syn-chronization is realized based on EVPN neighborhoods between standby.The port that VM1 is connected with three access devices is aggregation port, aggregation port
By distinguishing port priority, selection one makes as master port (port that VM is connected with main BRAS equipment is master port)
With.
Based on the application scenarios, the multi-computer back-up protocol procedures that the embodiment of the present application is provided are as follows：
1st, when VTEP1 (i.e. BRAS equipment 1) detects user terminal (by taking VM1 as an example) certification by reaching the standard grade, VTEP1 lifes
Into the corresponding session informations of VM1, and the corresponding ARP informations of VM1 and routing iinformation are generated, and by the corresponding routing iinformations of VM1
Remote equipment is published to, and then, the flow that remote equipment is transmitted to VM1 is forwarded by VTEP1.
2nd, the corresponding session informations of VM1 are synchronized to VTEP2 and VTEP3 by VTEP1.
In this embodiment, VTEP1 can be reported according to the EVPN neighbours for setting up by the Update (renewal) of bgp protocol
The session information of VM1 is synchronized to VTEP2 and VTEP3 by text.
Specifically, the session information of VM1 can be route (a kind of route of new definition) and is encapsulated into by VTEP1 as 6 classes
In BGP Update messages, by between VTEP1 and VTEP2 and VTEP3 set up EVPN neighbours, be synchronized to VTEP2 and
VTEP3。
When VTEP2 and VTEP3 receive the BGP Update messages, the session information that the message includes is parsed.
3rd, it is the session information of VM1 when VTEP2 and VTEP3 receive the session information of VTEP1 synchronous VM1
Backup mark is set, and corresponding session list items are generated according to the session information.
Wherein, for being provided with the session information that backup is identified, VTEP2 and VTEP3 will not generate corresponding ARP letters
Breath and routing iinformation, correspondingly, from the flow that public network comes, can be forwarded on VTEP1 (main BRAS equipment), and then be forwarded to
VM1。
4th, when the flow of VM1 is forwarded by VTEP1, VTEP1 carries out traffic statistics to VM1, and periodically by flow
Statistical information is synchronized to VTEP2 and VTEP3, is preserved by VTEP2 and VTEP3.
5th, when VM1 is offline, VTEP1 deletes the ARP information and FIB information of the local VM1 for preserving, and by BGP
Update messages, the offline information of VM1 is notified to VTEP2 and VTEP3, so that VTEP2 and VTEP3 deletes local preservation
The user profile of VM1, such as session information, traffic statistics.
6th, when VTEP1 occurs equipment fault, VTEP2 and VTEP3 redefines new main BRAS equipment, it is assumed that VTEP2
Be confirmed as new main BRAS equipment, then VTEP2 can according to the session information of self record generate corresponding ARP information and
Routing iinformation, and routing iinformation is published to remote equipment, hereafter, from the flow that public network comes, can be forwarded on VTEP2, enter
And it is forwarded to subscriber terminal side.
By above description as can be seen that application embodiment provide technical scheme in, by what is included in networking
A main access device is determined in two or two access devices, EVPN neighbours are set up between main access device and standby access device
Relation, when target access device is main access device, and when detecting target terminal user certification by reaching the standard grade, generation target is used
The corresponding session information of family terminal, and the corresponding session information of target terminal user is synchronized to target access device
EVPN neighbours, so that the EVPN neighbours of target access device preserve the session information of the target terminal user, it is thus possible to
Realize access device 1：The data backup of N, improves the scalability of data backup.
Fig. 3 is referred to, the structural representation of device is realized for a kind of multi-computer back-up that the embodiment of the present application is provided, wherein,
The multi-computer back-up realize device can apply to above method embodiment in target access device, as shown in figure 3, the multimachine is standby
Part realizes that device can include：
Generation unit 310, for being main access device when the target access device, and detects target terminal user and recognizes
When card is by reaching the standard grade, the corresponding session session information of the target terminal user is generated；
Transmitting element 320, accesses for the corresponding session information of the target terminal user to be synchronized into the target
The EVPN neighbours of equipment, so that the EVPN neighbours of the target access device preserve the session letters of the target terminal user
Breath.
Please also refer to Fig. 4, the structural representation of device is realized for another multi-computer back-up that the embodiment of the present application is provided,
As shown in figure 4, on the basis of embodiment illustrated in fig. 3, the multi-computer back-up shown in Fig. 4 realizes that device can also include：
Setting unit 330, for being standby access device when the target access device, and receives main access device synchronization
User terminal session information when, be the user terminal session information set backup mark；
The generation unit 310, is additionally operable to generate corresponding session list items according to session information.
Please also refer to Fig. 5, the structural representation of device is realized for another multi-computer back-up that the embodiment of the present application is provided,
As shown in figure 5, on the basis of embodiment illustrated in fig. 3, the multi-computer back-up shown in Fig. 5 realizes that device can also include：
Statistic unit 340, for when the target access device is main access device, the flow to user terminal to be carried out
Statistics；
The transmitting element 320, is additionally operable to that traffic statistics periodically are synchronized into the target access device
EVPN neighbours.
Please also refer to Fig. 6, the structural representation of device is realized for another multi-computer back-up that the embodiment of the present application is provided,
As shown in fig. 6, on the basis of embodiment illustrated in fig. 3, the multi-computer back-up shown in Fig. 6 realizes that device can also include
Unit 350 is deleted, for being main access device when the target access device, and targeted customer's end is detected
When holding offline, the forwarding-table item information of the local target terminal user for preserving is deleted；
The transmitting element 320, is additionally operable to be sent for targeted customer's end to the EVPN neighbours of the target access device
The offline notification message at end, so that the EVPN neighbours of the target access device delete the local target terminal user for preserving
Session information.
In an alternative embodiment, the generation unit 310, is additionally operable to when the target access device is by standby access device quilt
When being defined as new main access device, the session information according to the local user terminal for preserving generates corresponding address resolution
Agreement ARP information and routing iinformation；
The transmitting element 320, is additionally operable to for the routing iinformation to be distributed to remote equipment.
The function of unit and the implementation process of effect correspond to step in specifically referring to the above method in said apparatus
Implementation process, will not be repeated here.
For device embodiment, because it corresponds essentially to embodiment of the method, so related part is referring to method reality
Apply the part explanation of example.Device embodiment described above is only schematical, wherein described as separating component
The unit of explanation can be or may not be physically separate, and the part shown as unit can be or can also
It is not physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Can be according to reality
Selection some or all of module therein is needed to realize the purpose of application scheme.Those of ordinary skill in the art are not paying
In the case of going out creative work, you can to understand and implement.
As seen from the above-described embodiment, by determining a main access in two included in networking or two access devices
Equipment, EVPN neighborhoods are set up between main access device and standby access device, when target access device is main access device, and
When detecting target terminal user certification by reaching the standard grade, the corresponding session information of generation target terminal user, and target is used
Terminal corresponding session information in family is synchronized to the EVPN neighbours of target access device, so that the EVPN of target access device is adjacent
The session information for preserving the target terminal user is occupied, it is thus possible to realize access device 1：The data backup of N, improves number
According to the scalability of backup.
Those skilled in the art will readily occur to its of the application after considering specification and putting into practice invention disclosed herein
Its embodiment.The application is intended to any modification, purposes or the adaptations of the application, these modifications, purposes or
Person's adaptations follow the general principle of the application and including the undocumented common knowledge in the art of the application
Or conventional techniques.Description and embodiments are considered only as exemplary, and the true scope of the application and spirit are by following
Claim is pointed out.
It should be appreciated that the application is not limited to the precision architecture for being described above and being shown in the drawings, and
And can without departing from the scope carry out various modifications and changes.Scope of the present application is only limited by appended claim.
Claims (10)
1. a kind of multi-computer back-up implementation method, is applied to the target access in the networking for include two or more access devices
Equipment, it is characterised in that described two or two or more access device includes a main access device, remaining access device is
Standby access device, ether Virtual Private Network EVPN neighborhoods are set up between the main access device and standby access device；It is described
Method includes：
When the target access device is main access device, and when detecting target terminal user certification by reaching the standard grade, generate institute
State the corresponding session session information of target terminal user；
The corresponding session information of the target terminal user is synchronized to the EVPN neighbours of the target access device, so that
The EVPN neighbours of the target access device preserve the session information of the target terminal user.
2. method according to claim 1, it is characterised in that methods described also includes：
When the target access device is standby access device, and receive the session of the synchronous user terminal of main access device
During information, for the session information of the user terminal sets backup mark, and generated according to the session information corresponding
Session list items.
3. method according to claim 1, it is characterised in that methods described also includes：
When the target access device is main access device, the flow to user terminal is counted, and periodically will stream
Amount statistical information is synchronized to the EVPN neighbours of the target access device.
4. method according to claim 1, it is characterised in that methods described also includes：
When the target access device is main access device, and detect the target terminal user it is offline when, delete local guarantor
The forwarding-table item information of the target terminal user deposited, and sent for target to the EVPN neighbours of the target access device
The offline notification message of user terminal, so as to the EVPN neighbours of the target access device delete the local target for preserving use
The session information of family terminal.
5. method according to claim 1, it is characterised in that methods described also includes：
When the target access device is confirmed as new main access device by standby access device, according to the local user for preserving
The session information of terminal generates corresponding ARP information and routing iinformation, and the routing iinformation is distributed into remote equipment.
6. a kind of multi-computer back-up realizes device, and the target being applied in the networking for include two or more access devices is accessed
Equipment, it is characterised in that described two or two or more access device includes a main access device, remaining access device is
Standby access device, ether Virtual Private Network EVPN neighborhoods are set up between the main access device and standby access device；It is described
Device includes：
Generation unit, for being main access device when the target access device, and detects target terminal user certification and passes through
When reaching the standard grade, the corresponding session session information of the target terminal user is generated；
Transmitting element, for the corresponding session information of the target terminal user to be synchronized into the target access device
EVPN neighbours, so that the EVPN neighbours of the target access device preserve the session information of the target terminal user.
7. device according to claim 6, it is characterised in that described device also includes：
Setting unit, for being standby access device when the target access device, and receives the synchronous user of main access device
During the session information of terminal, for the session information of the user terminal sets backup mark；
The generation unit, is additionally operable to generate corresponding session list items according to session information.
8. device according to claim 6, it is characterised in that described device also includes：
Statistic unit, for when the target access device is main access device, the flow to user terminal to be counted；
The transmitting element, the EVPN for being additionally operable to that traffic statistics periodically are synchronized into the target access device is adjacent
Occupy.
9. device according to claim 6, it is characterised in that described device also includes：
Unit is deleted, for being main access device when the target access device, and it is offline to detect the target terminal user
When, delete the forwarding-table item information of the local target terminal user for preserving；
The transmitting element, is additionally operable to be sent for the offline of target terminal user to the EVPN neighbours of the target access device
Notification message, so that the EVPN neighbours of the target access device delete the local target terminal user for preserving
Session information.
10. device according to claim 6, it is characterised in that
The generation unit, is additionally operable to be confirmed as new main access device by standby access device when the target access device
When, the session information according to the local user terminal for preserving generates corresponding ARP information and route is believed
Breath；
The transmitting element, is additionally operable to for the routing iinformation to be distributed to remote equipment.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108234615A (en) * | 2017-12-25 | 2018-06-29 | 新华三技术有限公司 | Table entry processing method, mainboard and master network device |
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| CN106878051B (en) | 2020-10-09 |
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