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Why does BGP attempt to establish connections over 10 seconds after the peer is configured?

Latest reply: Apr 28, 2017 07:17:58 1160 1 0 0 0

Hi, community! 

I want to know why does BGP attempt to establish connections over 10 seconds after the peer is configured?

Thanks!

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Adamcolob
Created Apr 28, 2017 07:17:58

Hi friend!

Compared with IGP configuration, BGP configuration is more complex. In addition to the peer and AS, outbound interface, multi-hop, timer, and various capabilities need to be specified. Currently, BGP does not support dynamic capability negotiation. Therefore, these parameters, after being modified, need to be renegotiated.

To avoid frequent interruptions during the renegotiation, a proper time parameter is required to ensure that the relevant configurations are complete before the link establishment attempt. RFC4271 recommends 120s, whereas 10s is adopted by Huawei devices.

Hope this helps!

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