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How to deploy the BGP GR

Latest reply: Dec 24, 2018 15:25:16 859 3 10 0 0

A BGP restart causes reestablishment of peer relationships and a traffic interruption. To prevent the traffic interruption, run the graceful-restart command to enable GR.

Currently, BGP does not support dynamic capability negotiation. As a result, each time the BGP capability changes, the BGP peer relationship is re-established. For example, a BGP IPv4 unicast peer relationship is established and IPv4 services are running; if the BGP capability changes, the BGP IPv4 unicast peer relationship will be re-established, which interrupts ongoing IPv4 services. To prevent the service interruptions, run the graceful-restart peer-reset command to enable the router to reset a BGP session in GR mode.

If the GR reset function and a new BGP capability are enabled on a BGP speaker, the BGP speaker enters the GR state, resets the BGP session (without deleting the routing entries for the session), and renegotiates BGP capabilities with its peer. Therefore, existing services are not interrupted.

Enable the device to reset a BGP connection in GR mode when establishing BGP peer relationships.

In this project we need to enable the BGP GR to prevent the traffic interruption.

The configuration template is as below:

Table 1-1 BGP GR Configuration Template

#

bgp 65000

graceful-restart

graceful-restart peer-reset

#

commit

#


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dagui
Created Dec 24, 2018 03:06:46

Can you tell us about the specific content of BGP GR?
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user_2915719
Created Dec 24, 2018 07:59:24

From the descriptions I think this reset only apply on one node, and other peer nodes are not affected, am I right?
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bahjat1990
Created Dec 24, 2018 15:25:16

It's hard
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