Which reasons could cause BGP connection cannot be established?

Latest reply: Feb 22, 2016 02:25:27 1030 1 0 0
Which reasons could cause BGP connection cannot be established?
  • x
  • convention:

Created Feb 22, 2016 02:25:27 Helpful(0) Helpful(0)

The most common reasons are as follows:
1) The IPs of BGP peer cannot ping each other. At this time, you can use extended ping to check the TCP connection.
For example:
ping -a source-ip-address destination-ip-address。
2) The wrong configuration of peer IP or peer AS;
3) OPEN packet negotiation fails,OPEN packet will negotiate BGP version、Holdtime, Router_id, optional parameter and so on; Generally due to failure to correctly identify the parameters, in particular the parameters of others informational firms;
4) MD5 authentication configuration errors;
5) Router-id conflicts;
6) The wrong configuration of BGP connection between Confederation and non-confederation;
7) Marker error, it appears rarely;
8) And so on;
  • x
  • convention:


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