CN105591951B - The BGP message processing methods and device of pile system - Google Patents
The BGP message processing methods and device of pile system Download PDFInfo
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- CN105591951B CN105591951B CN201510665365.0A CN201510665365A CN105591951B CN 105591951 B CN105591951 B CN 105591951B CN 201510665365 A CN201510665365 A CN 201510665365A CN 105591951 B CN105591951 B CN 105591951B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/58—Association of routers
- H04L45/583—Stackable routers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate
Abstract
This application discloses the BGP message processing methods and device of a kind of pile system, wherein pile system runs bgp protocol, and pile system includes：Host apparatus and stand-by equipment, this method include：When as stand-by equipment, TCP agent function is enabled；After receiving the BGP messages that bgp peer is sent, the BGP messages received are cached, and send a notification message to host apparatus；After host apparatus has handled the notification message, the BGP messages of caching are deleted.The application has saved the spatial cache of host apparatus, reduces the occupancy of the cpu resource of host apparatus.
Description
Technical field
This application involves network communication technology field, more particularly to the BGP message processing methods and dress of a kind of pile system
It sets.
Background technology
BGP (Border Gateway Protocol, Border Gateway Protocol) is that one kind both having can be used for different AS
Between (Autonomous System, autonomous system), and it can be used for the dynamic routing protocol inside same AS.Run BGP associations
The router of view is known as BGP speaker.Bgp neighbor relationship can be established between two BGP speaker, and is establishing bgp neighbor
TCP (Transmission Control Protocol, transmission control protocol) connections are established in relational process, TCP connection is established
After the completion, so that it may to be exchanged with each other routing iinformation, at this point, this two BGP speaker bgp peer each other.
Type of message in bgp protocol is mainly the following：
Open (opening)：First message that TCP connection is sent after establishing, for establishing the connection between bgp peer
Relationship.
Update (update)：For exchanging routing iinformation between bgp peer.One Update message can issue tool
There is a plurality of up to routing of same paths attribute, a plurality of unreachable routing can also be cancelled simultaneously.
Keepalive (keep-alive)：BGP speaker periodically sends Keepalive messages to bgp peer, to keep
The validity of connection.
Route-refresh (route refresh)：The routing of address family is specified to believe for requiring bgp peer to retransmit
Breath.
Notification (notice)：When BGP speaker detects error condition, just sent out to bgp peer
Notification messages, later BGP connections can be interrupted immediately.
Currently, virtualizing skill by IRF (Intelligent Resilient Framework, intelligent elastic framework) etc.
Art can link together the more network equipments, form a virtual logical device, hereinafter referred to as pile system, stack
Every equipment in system is referred to as member device, and member device is divided into two kinds of roles according to function difference：Host apparatus
(Master) and stand-by equipment (Slave), wherein host apparatus is responsible for entire pile system, and stand-by equipment is as primary
The alternate device of equipment is run.
When pile system has run bgp protocol, host apparatus and stand-by equipment in pile system can with positioned at
BGP speaker outside pile system establishes bgp neighbor relationship, at this point, the TCP between stand-by equipment and external BGP spokesman
(Transmission Control Protocol, transmission control protocol) connection is seen on the control plane, is host apparatus and this
TCP connection is established between external BGP spokesman, therefore, stand-by equipment receives external BGP spokesman (at this point, outside this
BGP speaker is the bgp peer of stand-by equipment) the BGP messages sent when, can directly on give host apparatus and handled.
In this way, when a large amount of BGP messages all directly on give host apparatus processing when, host apparatus needs to distribute larger
Spatial cache caches these BGP messages, occupies larger spatial cache, and occupy a large amount of cpu resource to handle
These BGP messages.
Invention content
In view of this, this application provides the BGP message processing methods and device of a kind of pile system.
The technical solution of the application is as follows：
On the one hand, a kind of BGP message processing methods of pile system are provided, pile system runs bgp protocol, stacks system
System includes：Host apparatus and stand-by equipment, this method include：
When as stand-by equipment, TCP agent function is enabled；
After receiving the BGP messages that bgp peer is sent, the BGP messages received are cached, and send out to host apparatus
Send notification message；
After host apparatus has handled notification message, the BGP messages of caching are deleted.
On the other hand, a kind of BGP message process devices of pile system are additionally provided, pile system runs bgp protocol, heap
Folded system includes：Host apparatus and stand-by equipment, the device include：Enabled module, receiving module, cache module and transmission mould
Block, wherein：
Enabled module, for when the device is located in stand-by equipment, enabling TCP agent function；
Receiving module, for when the device is located in stand-by equipment, receiving the BGP messages that bgp peer is sent；
Cache module, for after the BGP messages that receiving module receives that bgp peer is sent, caching BGP reports
Text；It is additionally operable to after the notification message that host apparatus has handled sending module transmission, deletes the BGP messages of caching；
Sending module, for after the BGP messages that receiving module receives that bgp peer is sent, being sent out to host apparatus
Send notification message.
In the above technical scheme of the application, stand-by equipment enables TCP agent function, is sent receiving bgp peer
BGP messages after, cache the BGP messages received, and send a notification message to host apparatus, handled in host apparatus logical
After knowing message, the BGP messages of caching are deleted.Due to caching the BGP messages from bgp peer by stand-by equipment, and nothing
It needs host apparatus to cache, therefore spatial cache has been saved for host apparatus, moreover, stand-by equipment will not be straight by these BGP messages
It connects and gives host apparatus processing, but send a notification message to host apparatus, the CPU of host apparatus is without directly handling these
BGP messages reduce the occupancy of the cpu resource of host apparatus.
Description of the drawings
Fig. 1 is the flow chart of the BGP message processing methods of the pile system of the embodiment of the present application；
Fig. 2 is a kind of configuration diagram of the real network comprising pile system；
Fig. 3 is a kind of structural schematic diagram of the BGP message process devices of the pile system of the embodiment of the present application；
Fig. 4 is another structural schematic diagram of the BGP message process devices of the pile system of the embodiment of the present application；
Fig. 5 is another structural schematic diagram of the BGP message process devices of the pile system of the embodiment of the present application.
Specific implementation mode
In the prior art, stand-by equipment is after receiving the BGP messages that bgp peer is sent, directly on give primary set
It is standby to be handled, in this way, host apparatus needs to occupy a large amount of cpu resource to handle these BGP messages, in order to solve existing skill
The above problem present in art provides a kind of BGP message processing methods of pile system in the application following embodiment, and
A kind of device that can apply this method.
In the method for the embodiment of the present application, stand-by equipment enables TCP agent function, is receiving what bgp peer was sent
After BGP messages, the BGP messages received are cached, and send a notification message to host apparatus, it is logical to have handled this in host apparatus
After knowing message, the BGP messages of caching are deleted.
Specifically, as shown in Figure 1, the BGP message processing methods of the pile system of the embodiment of the present application include the following steps：
Step S102, stand-by equipment enable TCP agent function；
It is without restriction to how it enables as long as stand-by equipment enables TCP agent function, can receive e.g.
Notice to host apparatus is enabled, can also be enabled or other modes are enabled by human configuration.In actual implementation process
In, it is main after perceiving stand-by equipment and its bgp peer (that is, external BGP speaker) establishes bgp neighbor relationship
TCP connection information of the bgp neighbor relationship on host apparatus can be backed up to the stand-by equipment with equipment；Stand-by equipment
The TCP connection information that host apparatus is sent is received and preserved, sets the state that sends and receivees of TCP connection to proxy (generations
Reason), it distributes the transmission buffer area for caching BGP messages to be sent and the reception for caching the BGP messages received is slow
Deposit area.
Wherein, TCP connection information includes：The address and port of port on stand-by equipment for connecting bgp peer
Number, the address of the port on the bgp peer for connecting the stand-by equipment and port numbers, connection status are set to
ESTABLISHED (has been established).
After stand-by equipment receives the BGP messages that the bgp peer is sent, it is since TCP sends and receivees state
Proxy, therefore step S104 can be executed.
Step S104, stand-by equipment cache the BGP messages, really after receiving the BGP messages that bgp peer is sent
The type of message of the fixed BGP messages, executes step S106 later；
At this point, the type of message of the BGP messages received can be Keepalive messages or Route-refresh reports
Text or Update messages.
Step S106, stand-by equipment judge whether the BGP messages are Keepalive messages, if so, thening follow the steps
Otherwise S108 executes step S114；
Step S108, stand-by equipment send the first notification message to host apparatus, execute step S110 later；
Wherein, the first notification message is used to indicate host apparatus and refreshes BGP between this stand-by equipment and the bgp peer
The keepalive timer of neighborhood, for maintaining the bgp neighbor relationship.
Step S110, host apparatus refresh after receiving first notification message indicated by first notification message
Bgp neighbor relationship keepalive timer, that is, enable the keepalive timer restart timing, refreshing finish after to stand-by equipment
Send the deletion notice for being used to indicate the Keepalive messages for deleting caching；
Step S112 deletes the Keepalive messages of caching after stand-by equipment receives deletion notice；
Step S114, stand-by equipment judge whether the BGP messages are Route-refresh messages, if so, thening follow the steps
Otherwise S116 executes step S122；
Step S116, stand-by equipment send third notice message to host apparatus, execute step S118 later；
Wherein, third notice message is used to indicate the routing iinformation that host apparatus needs are sent.
Step S118 after host apparatus receives the third notice message, is assembled and is carried the third notice message institute
The Update messages for the routing iinformation that the needs of instruction are sent, and it is handed down to stand-by equipment, step S120 is executed later；
The Update messages after stand-by equipment receives the Update messages, are cached and are sent by step S120
It goes out, after being sent, deletes the Route-refresh messages and Update messages of caching；
Step S122, stand-by equipment judge whether the message is Update messages, if so, S124 is thened follow the steps, otherwise,
Execute step S130；
Step S124, stand-by equipment send second notification message to host apparatus, execute step S126 later；
Wherein, second notification message is used to indicate this stand-by equipment and has received Update messages and host apparatus is needed to carry out
Processing.
Step S126, the second notification message that host apparatus is sent according to default sequencing processing stand-by equipment, is locating
When managing any second notification message, the stand-by equipment is given to receive on the stand-by equipment of the notice transmission second notification message
Update messages receive and process the Update messages sent on the stand-by equipment, after having handled the second notification message, to
The stand-by equipment sends the deletion notice for being used to indicate the Update messages for deleting caching；
Wherein, default sequencing includes but not limited to：The second notification message first received is first handled, after receive second
Notification message post-processes, and the second notification message that receives simultaneously is handled according to preset rules, which can be with
Be according to sending device number from big to small sequencing processing, can also be according to sending device number from small to large
Sequencing processing.
In the actual implementation process, host apparatus can priority processing this equipment receive from bgp peer
Update messages, then, the second notification message that reprocessing stand-by equipment is sent, stand-by equipment have handled any second notice and have disappeared
After breath, in addition to notice send the second notification message stand-by equipment delete the Update messages of caching other than, can be with
Stand-by equipment is notified to discharge the spatial cache for caching the Update messages.
Step S128 deletes the Update messages of caching after stand-by equipment receives deletion notice；
Step S130, stand-by equipment abandon the BGP messages.
It should be noted that the embodiment of the present invention to stand-by equipment judge the BGP messages whether be Keepalive messages,
Route-refresh messages, the sequence of Update messages are without restriction, and above-described embodiment is only to first judging that Keepalive is reported
Text, a kind of example for judging Route-refresh messages again, finally judging Update messages.
In the method for the above embodiments of the present application, stand-by equipment enables TCP agent function, is receiving bgp peer hair
After the BGP messages come, the BGP messages received is cached, and send a notification message to host apparatus, handled in host apparatus
After notification message, the BGP messages of caching are deleted.Due to caching the BGP messages from bgp peer by stand-by equipment, and
It is cached without host apparatus, therefore spatial cache has been saved for host apparatus, moreover, stand-by equipment will not be by these BGP messages
Host apparatus processing is given on directly, but is sent a notification message to host apparatus, and the CPU of host apparatus is without directly handling this
A little BGP messages, reduce the occupancy of the cpu resource of host apparatus.
For the Keepalive messages from bgp peer received, stand-by equipment no longer reports the Keepalive
Host apparatus is given on text is direct, but caches the Keepalive messages, and notifies that host apparatus refreshes this stand-by equipment and is somebody's turn to do
The keepalive timer of bgp neighbor relationship between bgp peer, in this way, host apparatus no longer needs to caching Keepalive messages,
The CPU of host apparatus only need to refresh corresponding keepalive timer, reduce primary without reprocessing Keepalive messages
The occupancy of the spatial cache of equipment and the occupancy of cpu resource.
For the Update messages from peer-to-peer received, stand-by equipment no longer by the Update messages it is direct on give
To host apparatus, but cache the Update messages and notify host apparatus, wait receive host apparatus report notice after, will receive
To Update message up sending handled to host apparatus, and the Update messages are deleted after host apparatus is disposed,
In this way, since elder generation is cached on stand-by equipment, then gradually handled by host apparatus, reduce the caching of host apparatus
The occupancy in space alleviates the burden of the CPU of host apparatus.
For the Route-refresh messages from peer-to-peer received, stand-by equipment is no longer by the Route-
Host apparatus is given on refresh messages are direct, but caches the Route-refresh messages and notifies host apparatus, is being connect
After receiving the Update messages that host apparatus is sent for the notice, caches the Update messages and send, sending
The Route-refresh messages and Update messages of caching are deleted after finishing, in this way, since host apparatus no longer needs to caching Route-
The CPU of refresh messages, host apparatus need to only be assembled without reprocessing Route-refresh according to the notice of stand-by equipment
Update messages reduce the occupancy of the spatial cache of host apparatus and the occupancy of cpu resource.
By taking real network as shown in Figure 2 as an example, method that above-described embodiment is described in detail.In fig. 2, router R1,
R2, R3 and R4 constitute an annular pile system, wherein R1 is host apparatus, and R2, R3 and R4 are stand-by equipment.The stacking
System operation bgp protocol, R2 and router R5 establish bgp neighbor.It is 10.1.1.1/ that the address of the interface P1 of R5 is connected on R2
It is 10.1.1.2/24 that the address of the interface P2 of R2 is connected on 24, R5.
R2 enables TCP agent function；
After perceiving R2 and R5 and establishing bgp neighbor relationship, R1 is by TCP of the bgp neighbor relationship in this equipment
Link information is backed up to the R2；
After R2 receives the TCP connection information that R1 is sent, preserve the TCP connection information, and by the reception of TCP connection and
Transmission state is set as proxy, distributes transmission buffer area for caching BGP messages to be sent and is received for caching
The order caching area of BGP messages；Wherein, the TCP connection information of preservation is as shown in table 1：
Table 1
| Local terminal interface IP address and port numbers | Opposite end interface IP address and port numbers | Connection status |
| 10.1.1.1:179 | 10.1.1.2:11830 | ESTABLISHED |
Explanation：179 be the port numbers of BGP.
R5 sends Keepalive messages to R2；After R2 receives the Keepalive messages, the Keepalive messages are cached
And send the first notification message to R1；After R1 receives first notification message, refresh the bgp neighbor relationship between R2 and R5
Keepalive timer after the completion of refreshing, sends to be used to indicate to R2 and deletes caching to maintain the bgp neighbor relationship normal
The deletion of Keepalive messages notifies；After R2 receives deletion notice, the Keepalive messages of caching are deleted.
R5 sends Update messages to R2；After R2 receives the Update messages, caches the Update messages and sent out to R1
Send second notification message；After R1 receives the second notification message, it is logical that second sent on R3 and R4 has been had received before finding
Know that message, the second notification message sent on R3 come number one, the second notification message sent on R4 comes No. second, then will be on R2
The third notice message sent comes third number, after the second notification message sent on having handled R3 and R4, is sent on processing R2
Second notification message notifies to send the Update reports from R5 received on R2 in the second notification message sent on handling R2
Text, after receiving and having handled the Update messages, the deletion that the Update messages for being used to indicate deletion caching are sent to R2 is logical
Know；After R2 receives deletion notice, the Update messages of caching are deleted.
R5 sends Route-refresh messages to R2；After R2 receives the Route-refresh messages, caching should
Route-refresh messages simultaneously send third notice message to R1；After R1 receives the third notice message, assembling carries this
The Update messages for the routing iinformation that needs indicated by third notice message are sent, and it is handed down to R2；R2 is received and is cached this
The Update messages are sent to R5 by Update messages, after being sent, delete caching Route-refresh messages and
Update messages.
For the method in above-described embodiment, a kind of stacking that can apply this method is additionally provided in the embodiment of the present application
The BGP message process devices of system.Pile system runs bgp protocol, and pile system includes：Host apparatus and stand-by equipment,
The BGP message process devices can be applied in host apparatus or stand-by equipment.
As shown in figure 3, being comprised the following modules in the BGP message process devices：Enabled module 201, receiving module 202, hair
Module 203 and cache module 204 are sent, wherein：
Enabled module 201, for when the device is located in stand-by equipment, enabling TCP agent function；
Receiving module 202, for when the device is located in stand-by equipment, receiving the BGP messages that bgp peer is sent；
Sending module 203, for after the BGP messages that receiving module 202 receives that bgp peer is sent, to primary
Equipment dispatch order message；
Cache module 204, for after the BGP messages that receiving module 202 receives that bgp peer is sent, caching should
BGP messages；It is additionally operable to after the notification message that host apparatus has handled the transmission of sending module 203, deletes the BGP reports of caching
Text.
Wherein, if the BGP messages that receiving module 202 receives are Keepalive messages, sending module 203 is to primary
What equipment was sent is the first notification message, and the first notification message is used to indicate host apparatus and refreshes this stand-by equipment and this BGP pairs
The keepalive timer of bgp neighbor relationship between equal bodies；
At this point, receiving module 202, is additionally operable to receive bgp neighbor of the host apparatus indicated by the first notification message of refreshing
The deletion notice sent after the keepalive timer of relationship；
Cache module 204 is specifically used for：Host apparatus, which is received, in receiving module 202 is refreshing the first notification message meaning
After the deletion notice sent after the keepalive timer for the bgp neighbor relationship shown, the Keepalive messages of caching are deleted.
Wherein, as shown in figure 4, further including in the device：Refresh module 205, wherein：
Receiving module 202 is additionally operable to when the device is located in host apparatus, receives the first notice that stand-by equipment is sent
Message；
Refresh module 205 refreshes first notice and disappears after receiving the first notification message in receiving module 202
The keepalive timer of the indicated bgp neighbor relationship of breath；
Sending module 203 is additionally operable to close in the bgp neighbor that refresh module 205 has refreshed indicated by first notification message
After the keepalive timer of system, the deletion notice for being used to indicate the Keepalive messages for deleting caching is sent to stand-by equipment.
Wherein, if the BGP messages that receiving module 202 receives are Update messages, sending module 203 is to host apparatus
What is sent is second notification message, and second notification message is used to indicate this stand-by equipment and has received Update messages and need primary
Equipment is handled；
At this point, receiving module 202, is additionally operable to receive the deletion that host apparatus has been sent after having handled second notification message
Notice；
Cache module 204 is specifically used for：Receiving module 202 receive host apparatus handled second notification message it
After the deletion notice sent afterwards, the Update messages of caching are deleted.
As shown in figure 5, further including in the device：Processing module 206, wherein：
Processing module 206, for when the device is located in host apparatus, stand-by equipment to be handled according to default sequencing
The second notification message sent；
Sending module 203 is additionally operable to after processing module 206 has handled any second notification message, to send this
The stand-by equipment of two notification messages sends the deletion notice for being used to indicate the Update messages for deleting caching.
Wherein, processing module 206 includes：Notification unit and message receive processing unit, wherein：
Notification unit, for when processing is to any second notification message, notice to send the spare of the second notification message
The Update messages that the stand-by equipment receives are given in equipment；
Message receives processing unit, for receiving and processing the Update messages sent on the stand-by equipment.
Wherein, if the BGP messages that receiving module 202 receives are Route-refresh messages, sending module 203 to
What host apparatus was sent is third notice message, and third notice message is used to indicate host apparatus and needs the routing iinformation sent；
Receiving module 202, is additionally operable to receive carrying of sending of host apparatus and needs to send out indicated by third notice message
The Update messages of the routing iinformation sent；
Cache module 204 is additionally operable to carry third notice message what receiving module 202 received that host apparatus sends
After the Update messages for the routing iinformation that indicated needs are sent, which is cached, in sending module
After 203 send the Update messages of caching, the Route-refresh messages and Update messages of caching are deleted；
Sending module 203 is additionally operable to send out the Update messages that the host apparatus cached in cache module 204 is sent
It goes.
To sum up, the application above example can reach following technique effect：
Stand-by equipment enables TCP agent function, and after receiving the BGP messages that bgp peer is sent, caching receives
BGP messages, and send a notification message to host apparatus, after host apparatus has handled notification message, delete the BGP of caching
Message.It due to caching the BGP messages from bgp peer by stand-by equipment, is cached without host apparatus, therefore is primary
Equipment has saved spatial cache, moreover, stand-by equipment will not by these BGP messages it is direct on give host apparatus processing, but
It sends a notification message to host apparatus, the CPU of host apparatus reduces host apparatus without directly handling these BGP messages
The occupancy of cpu resource.
For the Keepalive messages from bgp peer received, stand-by equipment no longer reports the Keepalive
Host apparatus is given on text is direct, but caches the Keepalive messages, and notifies that host apparatus refreshes this stand-by equipment and is somebody's turn to do
The keepalive timer of bgp neighbor relationship between bgp peer, in this way, host apparatus no longer needs to caching Keepalive messages,
The CPU of host apparatus only need to refresh corresponding keepalive timer, reduce primary without reprocessing Keepalive messages
The occupancy of the spatial cache of equipment and the occupancy of cpu resource.
For the Update messages from peer-to-peer received, stand-by equipment no longer by the Update messages it is direct on give
To host apparatus, but cache the Update messages and notify host apparatus, wait receive host apparatus report notice after, will receive
To Update message up sending handled to host apparatus, and the Update messages are deleted after host apparatus is disposed,
In this way, since elder generation is cached on stand-by equipment, then gradually handled by host apparatus, reduce the caching of host apparatus
The occupancy in space alleviates the burden of the CPU of host apparatus.
For the Route-refresh messages from peer-to-peer received, stand-by equipment is no longer by the Route-
Host apparatus is given on refresh messages are direct, but caches the Route-refresh messages and notifies host apparatus, is being connect
After receiving the Update messages that host apparatus is sent for the notice, caches the Update messages and send, sending
The Route-refresh messages and Update messages of caching are deleted after finishing, in this way, since host apparatus no longer needs to caching Route-
The CPU of refresh messages, host apparatus need to only be assembled without reprocessing Route-refresh according to the notice of stand-by equipment
Update messages reduce the occupancy of the spatial cache of host apparatus and the occupancy of cpu resource.
The foregoing is merely the preferred embodiments of the application, not limiting the application, all essences in the application
With within principle, any modification, equivalent substitution, improvement and etc. done should be included within the scope of the application protection god.
Claims (14)
1. a kind of Border Gateway Protocol (BGP) message processing method of pile system, the pile system runs bgp protocol, described
Pile system includes：Host apparatus and stand-by equipment, which is characterized in that the method includes：
When as stand-by equipment, TCP agent function is enabled；
After receiving the BGP messages that bgp peer is sent, the BGP messages received are cached, and send and lead to host apparatus
Know message；
After host apparatus has handled the notification message, the BGP messages of caching are deleted.
2. if according to the method described in claim 1, it is characterized in that, the BGP messages received are keep-alive Keepalive
Message, then what is sent to host apparatus is the first notification message, and first notification message is used to indicate host apparatus and refreshes this
The keepalive timer of bgp neighbor relationship between stand-by equipment and the bgp peer；
After host apparatus has handled the notification message, the method for deleting the BGP messages of caching includes：
Host apparatus is received to send after the keepalive timer for refreshing the bgp neighbor relationship indicated by first notification message
Deletion notice, delete the Keepalive messages of caching.
3. according to the method described in claim 2, it is characterized in that, as host apparatus when, the method further includes：
After receiving the first notification message that stand-by equipment is sent, refresh the BGP indicated by the first notification message received
The keepalive timer of neighborhood refreshes after finishing and sends the Keepalive messages for being used to indicate and deleting and caching to stand-by equipment
Deletion notice.
4. if according to the method described in claim 1, it is characterized in that, the BGP messages received are update Update reports
Text, then what is sent to host apparatus is second notification message, and the second notification message is used to indicate this stand-by equipment and has received
Update messages simultaneously need host apparatus to be handled；
After host apparatus has handled the notification message, the method for deleting the BGP messages of caching includes：
The deletion notice that host apparatus is sent after having handled the second notification message is received, the described of caching is deleted
Update messages.
5. according to the method described in claim 4, it is characterized in that, as host apparatus when, the method further includes：
According to the second notification message sent of default sequencing processing stand-by equipment, after being disposed, spare set to this
Preparation send the deletion notice for being used to indicate the Update messages for deleting caching.
6. according to the method described in claim 5, it is characterized in that, the method for processing second notification message includes：
Notice sends the stand-by equipment of the second notification message, and the Update messages for above giving the stand-by equipment to receive receive and locate
Manage the Update messages sent on the stand-by equipment.
7. if according to the method described in claim 1, it is characterized in that, the BGP messages received are route refreshes
Route-refresh messages, then what is sent to host apparatus is third notice message, and the third notice message is used to indicate master
The routing iinformation for needing to send with equipment；
After host apparatus has handled the notification message, the method for deleting the BGP messages of caching includes：
Receive the routing iinformation that the needs carried indicated by the third notice message that host apparatus is sent are sent
The Update messages are cached and are sent by Update messages；
After being sent, the Route-refresh messages of caching and the Update messages are deleted.
8. a kind of Border Gateway Protocol (BGP) message process device of pile system, the pile system runs bgp protocol, described
Pile system includes：Host apparatus and stand-by equipment, which is characterized in that described device includes：Enabled module, receiving module,
Cache module and sending module, wherein：
The enabled module, for when described device is located in stand-by equipment, enabling TCP agent function；
The receiving module, for when described device is located in stand-by equipment, receiving the BGP messages that bgp peer is sent；
The sending module, for after the BGP messages that the receiving module receives that bgp peer is sent, being set to primary
It is standby to send a notification message；
The cache module, for after the BGP messages that the receiving module receives that bgp peer is sent, caching the BGP
Message；It is additionally operable to after the notification message that host apparatus has handled that the sending module is sent, deletes the BGP messages of caching.
9. device according to claim 8, which is characterized in that if the BGP messages that the receiving module receives are keep-alives
Keepalive messages, then what the sending module was sent to host apparatus is the first notification message, and first notification message is used
Refresh the keepalive timer of the bgp neighbor relationship between this stand-by equipment and the bgp peer in instruction host apparatus；
The receiving module is additionally operable to receive bgp neighbor relationship of the host apparatus indicated by refreshing first notification message
Keepalive timer after send deletion notice；
The cache module is specifically used for：Host apparatus, which is received, in the receiving module is refreshing the first notification message institute
After the deletion notice sent after the keepalive timer of the bgp neighbor relationship of instruction, the Keepalive reports of caching are deleted
Text.
10. device according to claim 9, which is characterized in that described device further includes：Refresh module, wherein：
The receiving module is additionally operable to when described device is located in host apparatus, receives the first notice that stand-by equipment is sent
Message；
The refresh module refreshes first notification message after receiving the first notification message in the receiving module
The keepalive timer of indicated bgp neighbor relationship；
The sending module is additionally operable to refresh the bgp neighbor relationship indicated by first notification message in the refresh module
Keepalive timer after, to stand-by equipment send be used to indicate delete caching Keepalive messages deletion notice.
11. device according to claim 8, which is characterized in that if the BGP messages that the receiving module receives are updates
Update messages, then what the sending module was sent to host apparatus is second notification message, and the second notification message is used for
Indicate that this stand-by equipment has received Update messages and host apparatus is needed to be handled；
It is logical to be additionally operable to the deletion that reception host apparatus is sent after having handled the second notification message for the receiving module
Know；
The cache module is specifically used for：Host apparatus, which is received, in the receiving module is handling the second notification message
After the deletion notice sent later, the Update messages of caching are deleted.
12. according to the devices described in claim 11, which is characterized in that described device further includes：Processing module, wherein：
The processing module, for when described device is located in host apparatus, stand-by equipment to be handled according to default sequencing
The second notification message sent；
The sending module is additionally operable to after the processing module has handled any second notification message, to send this second
The stand-by equipment of notification message sends the deletion notice for being used to indicate the Update messages for deleting caching.
13. device according to claim 12, which is characterized in that the processing module includes：
Notification unit, for when handling any second notification message, notifying the stand-by equipment of the transmission second notification message, on
Give the Update messages that the stand-by equipment receives；
Message receives processing unit, for receiving and processing the Update messages sent on the stand-by equipment.
14. device according to claim 8, which is characterized in that if the BGP messages that the receiving module receives are routings
Refresh Route-refresh messages, then what the sending module was sent to host apparatus is third notice message, and the third is logical
Know that message is used to indicate host apparatus and needs the routing iinformation sent；
The receiving module, is additionally operable to receive carrying of sending of host apparatus and needs to send out indicated by the third notice message
The Update messages of the routing iinformation sent；
The cache module, is additionally operable to receive the third notice that carries that host apparatus is sent in the receiving module and disappears
After the Update messages for the routing iinformation that the indicated needs of breath are sent, which is cached, in the hair
After sending module to send the Update messages of caching, the Route-refresh messages of caching and described are deleted
Update messages；
The sending module is additionally operable to send out the Update messages that the host apparatus cached in the cache module is sent
It goes.
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| CN101072238A (en) * | 2007-07-09 | 2007-11-14 | 中兴通讯股份有限公司 | Method for realizing identical subnet communication for MPLS three-layer virtual special net |
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