Reference Guide
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Prefix advertised 49304, rejected 0, withdrawn 36143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Prefix advertised 0, rejected 0, withdrawn 0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
neighbor 100.10.92.9 remote-as 65192
neighbor 100.10.92.9 no shutdown
neighbor 192.168.10.1 remote-as 65123
neighbor 192.168.10.1 update-source Loopback 0
neighbor 192.168.10.1 no shutdown
neighbor 192.168.12.2 remote-as 65123
neighbor 192.168.12.2 update-source Loopback 0
neighbor 192.168.12.2 no shutdown
R2#
Configuring AS4 Number Representations
Enable one type of AS number representation: ASPLAIN, ASDOT+, or ASDOT.
Term
Description
ASPLAIN Default method for AS number representation. With the ASPLAIN notation, a 32–bit binary AS number is
translated into a decimal value.
ASDOT+ A representation that splits the full binary 4-byte AS number into two words of 16 bits separated by a
decimal point (.): <high-order 16 bit value>.<low-order 16 bit value>.
ASDOT A representation that combines the ASPLAIN and ASDOT+ representations. AS numbers less than 65536
appear in integer format (asplain); AS numbers equal to or greater than 65536 appear using the decimal
144 Border Gateway Protocol IPv4 (BGPv4)