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Method and equipment for changing bgp session

A peer device and session establishment technology, applied in the field of communication, can solve problems such as business interruption

Active Publication Date: 2017-02-08
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing technology, after the neighbor relationship is established, if you need to modify the session HoldTime, you need to disconnect the neighbor, and the session will be disconnected and rebuilt, resulting in the interruption of the normal operation of the business

Method used

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  • Method and equipment for changing bgp session
  • Method and equipment for changing bgp session
  • Method and equipment for changing bgp session

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Embodiment Construction

[0028] After the BGP neighbor session connection is established, there will usually be new services added or existing services need to be reduced. In order to maintain the normal processing of services and avoid wasting bandwidth, it is necessary to increase or decrease the session keep-alive time accordingly. However, in traditional technology In , after the neighbor relationship is established, if you need to modify the session HoldTime, you need to disconnect the neighbor, and then the session will be disconnected and rebuilt, resulting in the interruption of the normal running business.

[0029] Compared with the processing method of the prior art, the present invention provides a solution that can dynamically change the BGP session. When establishing a BGP session connection, the devices at both ends will first interact through the Open message, and according to the capability identification of the Open message Which capabilities the device has can be judged. The present i...

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Abstract

The invention provides a method for changing a BGP session, which is applied to a router that has established a session connection. The method includes the following steps: the local router and the peer router establish a BGP session connection, and negotiate the initial value of HoldTime; During the session HoldTime, send a message carrying a newly configured HoldTime request to change the session HoldTime to the peer router, and wait for the reply message from the peer router; after receiving the confirmation message replied by the peer router, according to the The HoldTime of the router and the locally newly configured HoldTime negotiate a new HoldTime and use the new HoldTime value to update the KeepAlive sending interval. The present invention can dynamically modify the BGP session KeepAlive timer, without disconnecting the neighbors during the modification, and the original business will not be interrupted, thereby enhancing the stability of the BGP session.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method and equipment for changing a BGP session. Background technique [0002] BGP Border Gateway Protocol (Border Gateway Protocol) is a dynamic routing protocol used between border network devices. BGP-4 is suitable for a distributed structure and supports CIDR (Classless Inter-Domain Routing). BGP can also implement policies configured by users. The routing devices that have established BGP session connections are called peers. BGP also uses KeepAlive messages to monitor the connections of BGP sessions. That is, it is necessary to periodically send BGP KeepAlive messages between devices to keep Neighborhood relationship between devices. [0003] The BGP workflow is as follows: First, establish a TCP (Transmission Management Protocol) session connection between the routers to establish a BGP session, and then determine the connection parameters, such as the running ve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/757
Inventor 章海锋周轶凡
Owner NEW H3C TECH CO LTD
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