R0106-HP MSR Router Series Layer 3 - IP Routing Configuration Guide(V7)

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[RouterB-bgp-mul-ipv6] import-route ospfv3 1
[RouterB-bgp-mul-ipv6] quit
[RouterB-bgp] quit
Verifying the configuration
# Use the display bgp peer ipv6 multicast command to display BGP IPv6 multicast peers. This example
uses Router B.
[RouterB] display bgp peer ipv6 multicast
BGP local router ID : 2.2.2.2
Local AS number : 200
Total number of peers : 3 Peers in established state : 3
Peer AS MsgRcvd MsgSent OutQ PrefRcv Up/Down State
1001::1 100 56 56 0 0 00:40:54 Established
Troubleshooting BGP
Symptom
Display BGP peer information by using the display bgp peer ipv4 unicast or display bgp peer ipv6
unicast command. The state of the connection to a peer cannot become established.
Analysis
To become BGP peers, any two routers must establish a TCP connection using port 179 and exchange
Open messages successfully.
Solution
1. Use the display current-configuration command to verify the current configuration, and verify that
the peer's AS number is correct.
2. Use the display bgp peer ipv4 unicast or display bgp peer ipv6 unicast command to verify that the
peer's IP address/IPv6 address is correct.
3. If a loopback interface is used, verify that the loopback interface is specified with the peer
connect-interface command.
4. If the peer is a non-direct EBGP peer, verify that the peer ebgp-max-hop command is configured.
5. If the peer ttl-security hops command is configured, verify that the command is configured on the
peer. Verify that the hop-count values configured on them are greater than the number of hops
between them.
6. Verify that a valid route to the peer is available.
7. Use the ping command to verify the connectivity to the peer.
8. Use the display tcp verbose or display ipv6 tcp verbose command to verify the TCP connection.
9. Verify that no ACL rule is applied to disable TCP port 179.