Administrator Guide
CONFIG-ROUTER-BGP mode
neighbor {ip-address | peer-group-name} no shutdown
Examples of the show ip bgp Commands
NOTE: When you change the configuration of a BGP neighbor, always reset it by entering the
clear ip bgp * command in EXEC Privilege mode.
To view the BGP configuration, enter show config in CONFIGURATION ROUTER BGP mode. To view
the BGP status, use the show ip bgp summary command in EXEC Privilege mode. The first example
shows the summary with a 2-byte AS number displayed (in bold); the second example shows that the
summary with a 4-byte AS number using the
show ip bgp summary command (displays a 4–byte AS
number in bold).
The following example shows the show ip bgp summary command output (2–byte AS number
displays).
R2#show ip bgp summary
BGP router identifier 192.168.10.2, local AS number 65123
BGP table version is 1, main routing table version 1
1 network entrie(s) using 132 bytes of memory
1 paths using 72 bytes of memory
BGP-RIB over all using 73 bytes of memory
1 BGP path attribute entrie(s) using 72 bytes of memory
1 BGP AS-PATH entrie(s) using 47 bytes of memory
5 neighbor(s) using 23520 bytes of memory
Neighbor AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/Pfx
10.10.21.1 65123 0 0 0 0 0 never Active
10.10.32.3 65123 0 0 0 0 0 never Active
100.10.92.9 65192 0 0 0 0 0 never Active
192.168.10.1 65123 0 0 0 0 0 never Active
192.168.12.2 65123 0 0 0 0 0 never Active
R2#
The following example shows the show ip bgp summary command output (4–byte AS number
displays).
R2#show ip bgp summary
BGP router identifier 192.168.10.2, local
AS number 48735.59224
BGP table version is 1, main routing table version 1
1 network entrie(s) using 132 bytes of memory
1 paths using 72 bytes of memory
BGP-RIB over all using 73 bytes of memory
1 BGP path attribute entrie(s) using 72 bytes of memory
1 BGP AS-PATH entrie(s) using 47 bytes of memory
5 neighbor(s) using 23520 bytes of memory
Neighbor AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/Pfx
10.10.21.1 65123 0 0 0 0 0 never Active
10.10.32.3 65123 0 0 0 0 0 never Active
100.10.92.9 65192 0 0 0 0 0 never Active
192.168.10.1 65123 0 0 0 0 0 never Active
192.168.12.2 65123 0 0 0 0 0 never Active
R2#
Border Gateway Protocol IPv4 (BGPv4)
185