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A kind of bgp protocol gr enhancement method and device

A protocol and a technology for assisting information, applied in wireless communication, electrical components, etc., can solve the problems of large burden and large resource consumption, and achieve the effect of avoiding burden and reducing the amount of data interaction

Active Publication Date: 2022-03-25
FENGHUO COMM SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] However, during the GR process defined by this specification, GR Restarter requires neighbors to support the GR Helper function and BGP neighbor nodes in the network to assist. When the target BGP node is in the GR process, the neighbor node needs to transmit all information related to the target BGP node. Routing data, including the routing data of the target BGP node before GR and the routing data of the neighbor nodes of the target BGP node during the GR process. The transmission of such a large amount of routing data has caused a large burden on the network and BGP neighbor nodes; in addition , at the end of GR, the RIB IN module of the target BGP node still needs to perform route aging, that is, if the existing routing data of the RIB IN module is not received from the neighbor node again, it is considered that the data has aged and needs to be deleted. This calculation and comparison process It also consumes a lot of resources

Method used

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  • A kind of bgp protocol gr enhancement method and device
  • A kind of bgp protocol gr enhancement method and device
  • A kind of bgp protocol gr enhancement method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Embodiment 1 of the present invention provides a BGP protocol GR enhancement method, including: when the BMP SERVER confirms that the assisting target BGP node completes the GR process, return a message carrying assistance information to the target BGP node;

[0055] After receiving the message carrying the assistance information sent by the BMP SERVER, the target BGP node sends a silent message to a neighbor node, and the neighbor node performs silent processing after parsing the silent message;

[0056] Wherein, the silent processing means that the neighbor nodes of the target BGP node do not perform the GR Help process defined in RFC4724, that is, do not send routing data related to the target BGP node to the target BGP node, and only restore the routing data related to the target BGP node. The neighbor relationship between the target BGP nodes, RFC4724 here is not used to limit the type of agreement, other agreements that include GR Help flow or include similar flow ...

Embodiment 2

[0102] On the basis of the above-mentioned embodiment 1, the embodiment of the present invention combines figure 1 For specific description, in the embodiment of the present invention, the target BGP node in the above embodiment 1 is in figure 1 In is the BGP1 node, and the neighbor nodes of the target BGP node in the above-mentioned embodiment 1 are in figure 1 Take BGP2 nodes and BGP3 nodes as examples for illustration, where the first tag is in figure 1 is R in the second mark in the figure 1 is O in the middle, and the third mark is in figure 1 is S in the middle, and the fourth mark is in figure 1 In is U, the first parameter value is in figure 1 , is 1, the specific process is as follows:

[0103] In step 101, the BMP module of the BGP1 node establishes a session with the BMP SERVER, and requests the BMP SERVER to assist the BGP1 node to complete the GR process.

[0104] In step 102, if the BGP1 node is not connected to the BMP SERVER for the first time and the dat...

Embodiment 3

[0120] On the basis of the above-mentioned embodiment 2, the embodiment of the present invention combines figure 2 To explain in detail, in the scenario where the network changes, that is, when the routing data of the neighbor node changes, the embodiment of the present invention provides a BGP protocol GR enhancement method, such as figure 2 Shown:

[0121] In step 201, the BMP module of the BGP1 node establishes a session with the BMP SERVER, and requests the BMP SERVER to assist the BGP1 node to complete the GR process.

[0122] In step 202, if the BGP1 node is not connected to the BMP SERVER for the first time and the data of the BGP1 node is completely stored on the BMP SERVER, then the BMP SERVER can assist the BGP1 node to complete the GR process; otherwise, the BMP SERVER cannot assist the BGP1 node to complete the GR process ;

[0123] In step 203, the BMP SEVER returns to the BMP module of the BGP1 node the result of whether it can assist GR, specifically: if it ...

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Abstract

The present invention relates to the technical field of routing protocols, and provides a BGP protocol GR enhancement method and device. The method includes: when the BMP SERVER confirms to assist the target BGP node to complete the GR process, return a message carrying assistance information to the target BGP node; the target BGP The node sends a silent message to the neighbor node, and the neighbor node performs silent processing; the target BGP node sends an RM request message to the BMP SERVER; the BMP SERVER returns the relevant routing data of the corresponding neighbor node to the target BGP node through the RM response message, and the RM The second flag in the response message is set to the first parameter value, so as to instruct the target BGP node not to send out to the neighbor node after receiving the relevant routing data of the corresponding neighbor node. The invention reduces the amount of GR data interaction in the network, avoids causing a large burden on the network and BGP neighbor nodes, and does not need to send the received relevant routing data of the corresponding neighbor nodes to the corresponding neighbor nodes when the GR ends.

Description

technical field [0001] The invention relates to the technical field of routing protocols, in particular to a BGP protocol GR enhancement method and device. Background technique [0002] The BGP protocol (Border Gateway Protocol, Border Gateway Protocol) is currently the only cross-domain routing protocol, and the BGP reliability technology GR (RFC4724) has become a standard document. [0003] The related concepts of GR (Graceful Restart, smooth restart) are as follows: [0004] GR Restarter: refers to the device that restarts in GR mode after being triggered by the administrator or a fault. [0005] GR Helper: The neighbor of GR Restarter, the device that assists GR Restarter in GR. [0006] GR Time: It is the time for the GR Helper to keep the forwarding information without deleting it after detecting that the GR Restarter is restarted or the master / standby switchover is detected. [0007] BMP extension protocol (BGP Monitoring Protocol, BGP monitoring protocol), such as...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/04H04W40/24H04W24/02
CPCH04W40/04H04W40/246H04W24/02
Inventor 涂浩刘太强宋荣强黄逸飞吴宇航
Owner FENGHUO COMM SCI & TECH CO LTD