3Com MSR 50 Series Configuration Manual page 1042

1042 C 62: IP 6 BGP C
HAPTER V ONFIGURATION
Analysis
To become IPv6 BGP peers, any two routers need to establish a TCP session using
port 179 and exchange open messages successfully.
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.