13.6.1 Verifying BGP4 Peer Groups

<Structure of this section>

(1) List of operation commands

The following tables list the operation commands for BGP4 peer group.

Table 13-25: List of operation commands
Command name	Description
show ip bgp	Shows information related to the BGP4 protocol.

(2) Verifying BGP4 Peer Groups

To check the peering information about the peers in a peer group, use the show ip bgp command with the peer-group parameter specified.

Figure 13-32: Result of executing show ip bgp command (specifying peer-group parameter)
>show ip bgp peer-group INTERNAL-GROUP Date 20XX/07/17 18:40:00 UTC Local AS: 65531, Local Router ID: 172.16.2.100 BGP Peer AS Received Sent Up/Down Status 172.16.2.2 65531 36 42 20XX/07/16 18:42:26 Established 172.16.3.3 65531 51 63 20XX/07/16 12:42:31 Established

Figure 13-32: Result of executing show ip bgp command (specifying peer-group parameter)

>show ip bgp peer-group INTERNAL-GROUP
Date 20XX/07/17 18:40:00 UTC
Local AS: 65531, Local Router ID: 172.16.2.100
BGP Peer       AS     Received   Sent       Up/Down              Status
172.16.2.2     65531  36         42         20XX/07/16 18:42:26  Established
172.16.3.3     65531  51         63         20XX/07/16 12:42:31  Established

(3) Checking the peers that belong to BGP4 peer group

To display information about the peers in a peer group, use the show ip bgp command with the neighbors parameter specified.

Figure 13-33: Result of executing show ip bgp command (specifying neighbors parameter)
>show ip bgp neighbors EXTERNAL-GROUP Date 20XX/07/17 18:45:09 UTC Peer Address Peer AS Local Address Local AS Type Status 192.168.4.4 65533 192.168.4.214 65531 External Established 192.168.5.5 65534 192.168.5.189 65531 External Active

Figure 13-33: Result of executing show ip bgp command (specifying neighbors parameter)

>show ip bgp neighbors EXTERNAL-GROUP
Date 20XX/07/17 18:45:09 UTC
Peer Address    Peer AS  Local Address    Local AS  Type      Status
192.168.4.4     65533    192.168.4.214    65531     External  Established
192.168.5.5     65534    192.168.5.189    65531     External  Active

(4) Checking BGP4 peer group to which a peer belongs

To check which peer group a peer belongs to, use the show ip bgp command with the neighbors parameter and a <Peer Address> or <Host name> argument specified.

Figure 13-34: Result of executing show ip bgp command (neighbors, Specify parameter)
>show ip bgp neighbors 172.16.2.2 Date 20XX/07/17 18:45:09 UTC BGP Peer: 172.16.2.2, Remote AS: 65531 Remote Router ID: 172.16.2.20, Peer Group: INTERNAL-GROUP ..1 BGP Status:Established HoldTime: 90 , Keepalive: 30 Established Transitions: 1 Established Date: 20XX/07/16 18:42:26 BGP Version: 4 Type: Internal Local Address: 172.16.2.214, Local AS: 65531 Local Router ID: 172.16.2.100 Next Connect Retry:-, Connect Retry Timer: - Last Keep Alive Sent: 18:42:20, Last Keep Alive Received: 18:42:20 BGP Message UpdateIn UpdateOut TotalIn TotalOut 12 14 36 42 BGP Capability Negotiation: <IPv4-Uni Refresh Refresh(v)>> Send : <IPv4-Uni Refresh Refresh(v)> Receive: <IPv4-Uni Refresh Refresh(v)>> Password : UnConfigured BFD Name: -, BFD ID: -, BFD State: -

Figure 13-34: Result of executing show ip bgp command (neighbors, Specify parameter)

>show ip bgp neighbors 172.16.2.2
Date 20XX/07/17 18:45:09 UTC
BGP Peer: 172.16.2.2, Remote AS: 65531
Remote Router ID: 172.16.2.20, Peer Group: INTERNAL-GROUP                   ..1
    BGP Status:Established          HoldTime: 90   , Keepalive: 30
    Established Transitions: 1      Established Date: 20XX/07/16 18:42:26
    BGP Version: 4                  Type: Internal
    Local Address: 172.16.2.214,  Local AS: 65531
    Local Router ID: 172.16.2.100
    Next Connect Retry:-,          Connect Retry Timer: -
    Last Keep Alive Sent: 18:42:20, Last Keep Alive Received: 18:42:20
    BGP Message  UpdateIn UpdateOut TotalIn TotalOut
                 12       14        36      42
    BGP Capability Negotiation: <IPv4-Uni Refresh Refresh(v)>>
      Send   : <IPv4-Uni Refresh Refresh(v)>
      Receive: <IPv4-Uni Refresh Refresh(v)>>
    Password : UnConfigured
    BFD Name: -, BFD ID: -, BFD State: -

The peer belongs to the peer group INTERNAL-GROUP.