HP ProCurve Secure Router 7203 dl Advanced Management And Configuration Manual page 782

IP Routing—Configuring RIP, OSPF, BGP, and PBR
Troubleshooting Routing
13-168
ProCurve#show ip bgp neighbor
BGP neighbor is 10.1.1.1, remote AS 1, external link
Configured hold time is 180, keepalive interval is 60 seconds
Default minimum time between advertisement runs is 30 seconds
Connections established 1; dropped 0
Last reset: Never
Connection ID: 2
BGP version 4, remote router ID 1.1.1.1
BGP state is Established, for 00:08:20
Negotiated hold time is 180, keepalive interval is 60 seconds
Message statistics:
InQ depth is 0, OutQ depth is 0
Opens:
Notifications:
Updates:
Keepalives:
Unknown:
Total:
Local host: 10.2.2.1, Local port: 1096
Foreign host: 10.1.1.1, foreign port: 179
Flags: active open
Figure 13-39. Viewing a BGP Neighbor
A BGP Interface Will Not Accept Routes. If you suspect that the filters
are keeping the router from receiving routes, try comparing the routes that
the BGP interface receives from a neighbor to those it actually accepts. Enter:
Syntax: show ip bgp neighbor <A.B.C.D> received-routes
Syntax: show ip bgp neighbor <A.B.C.D> routes
Note any routes that display when you enter the first command that do not
display when you enter the second. These routes are being filtered out. (See
Figure 13-40.) You can also determine that the filter is rejecting a route, when
the route does not have an asterisk (*) in front of the network address.
If the router should accept the rejected route, then the inbound filter has been
misconfigured.
Sent Rcvd
1 1
0 0
1 3
8 8
0 0
10 12
Neighbor IP address
Neighbor AS
Neighbor ID
Local IP address
Neighbor IP address