Administrator Guide

● peer-group name: 16 characters
● as-number: from 0 to 65535 (2 Byte) or from 1 to 4294967295 (4 Byte) or 0.1 to 65535.65535 (Dotted format)
Formats: IP Address A.B.C.D
You must Configure Peer Groups before assigning it a remote AS.
3. Enable the BGP neighbor.
CONFIG-ROUTER-BGP mode
neighbor {ip-address | peer-group-name} no shutdown
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#
For the router’s identifier, Dell Networking OS uses the highest IP address of the Loopback interfaces configured. Because
Loopback interfaces are virtual, they cannot go down, thus preventing changes in the router ID. If you do not configure
Loopback interfaces, the highest IP address of any interface is used as the router ID.
To view the status of BGP neighbors, use the show ip bgp neighbors command in EXEC Privilege mode as shown in the
first example. For BGP neighbor configuration information, use the show running-config bgp command in EXEC Privilege
mode as shown in the second example.
NOTE:
The showconfig command in CONFIGURATION ROUTER BGP mode gives the same information as the show
running-config bgp command.
154 Border Gateway Protocol IPv4 (BGPv4)