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The third line of the show ip bgp neighbors output contains the BGP State. If anything other than
ESTABLISHED is listed, the neighbor is not exchanging information and routes. For more information
about using the show ip bgp neighbors command, refer to the Dell Nettworking OS Command Line
Interface Reference Guide
.
Dell#show ip bgp neighbors
BGP neighbor is 10.114.8.60, remote AS 18508, external link
BGP version 4, remote router ID 10.20.20.20
BGP state ESTABLISHED, in this state for 00:01:58
Last read 00:00:14, hold time is 90, keepalive interval is 30 seconds
Received 18552 messages, 0 notifications, 0 in queue
Sent 11568 messages, 0 notifications, 0 in queue
Received 18549 updates, Sent 11562 updates
Minimum time between advertisement runs is 30 seconds
For address family: IPv4 Unicast
BGP table version 216613, neighbor version 201190
130195 accepted prefixes consume 520780 bytes
Prefix advertised 49304, rejected 0, withdrawn 36143
Connections established 1; dropped 0
Last reset never
Local host: 10.114.8.39, Local port: 1037
Foreign host: 10.114.8.60, Foreign port: 179
BGP neighbor is 10.1.1.1, remote AS 65535, internal link
Administratively shut down
BGP version 4, remote router ID 10.0.0.0
BGP state IDLE, in this state for 17:12:40
Last read 17:12:40, hold time is 180, keepalive interval is 60 seconds
Received 0 messages, 0 notifications, 0 in queue
Sent 0 messages, 0 notifications, 0 in queue
Received 0 updates, Sent 0 updates
Minimum time between advertisement runs is 5 seconds
For address family: IPv4 Unicast
BGP table version 0, neighbor version 0
0 accepted prefixes consume 0 bytes
Prefix advertised 0, rejected 0, withdrawn 0
Connections established 0; dropped 0
Last reset never
No active TCP connection
Dell#
The following example shows verifying the BGP configuration.
R2#show running-config bgp
!
router bgp 65123
bgp router-id 192.168.10.2
network 10.10.21.0/24
network 10.10.32.0/24
network 100.10.92.0/24
network 192.168.10.0/24
bgp four-octet-as-support
neighbor 10.10.21.1 remote-as 65123
neighbor 10.10.21.1 filter-list ISP1in
neighbor 10.10.21.1 no shutdown
neighbor 10.10.32.3 remote-as 65123
neighbor 10.10.32.3 no shutdown
Border Gateway Protocol IPv4 (BGPv4)
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