Troubleshooting Ipv6 Bgp Configuration; No Ipv6 Bgp Peer Relationship Established - H3C S7500E Series Operation Manual

Operation Manual – IPv6 Routing
H3C S7500E Series Ethernet Switches
Use the display bgp ipv6 routing-table command on Switch B and Switch D
respectively, you can find both of them have learned the network 1::/64.

5.10 Troubleshooting IPv6 BGP Configuration

5.10.1 No IPv6 BGP Peer Relationship Established

I. Symptom
Display BGP peer information using the display bgp ipv6 peer command. The state of
the connection to the peer cannot become established.
II. Analysis
To become IPv6 BGP peers, any two routers need to establish a TCP session using
port 179 and exchange open messages successfully.
III. Processing steps
1) Use the display current-configuration command to verify the peer's AS number.
2) Use the display bgp ipv6 peer command to verify the peer's IPv6 address.
3) If the loopback interface is used, check whether the peer connect-interface
command is configured.
4) If the peer is not directly connected, check whether the peer ebgp-max-hop
command is configured.
5) Check whether a route to the peer is available in the routing table.
6) Use the ping command to check connectivity.
7) Use the display tcp ipv6 status command to check the TCP connection.
8) Check whether an ACL for disabling TCP port 179 is configured.
Chapter 5 IPv6 BGP Configuration
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