Setup Guide

below conguration example, no address family is congured. So, the routing information for the IPv4 unicast address family is advertised
by default.
1 Assign an AS number and enter ROUTER BGP mode.
CONFIGURATION mode
router bgp as-number
• as-number: from 0 to 65535 (2 Byte) or from 1 to 4294967295 (4 Byte) or 0.1 to 65535.65535 (Dotted format).
Only one AS is supported per system.
NOTE: If you enter a 4-Byte AS number, 4-Byte AS support is enabled automatically.
2 Add a BGP neighbor or peer and AS number.
CONFIG-ROUTER-BGP mode
neighbor {ip-address | ipv6-address| peer-group name} remote-as as-number
• ip-address: IPv4 address of the neighbor
• ipv6-address: IPv6 address of the neighbor
• peer-group name: Name of the peer group. It can contain 16 characters.
• as-number: Autonomous number
NOTE: Neighbors that are dened using the neighbor remote-as command in the CONFIGURATION-ROUTER-
BGP mode exchange IPv4 unicast address prexes only.
3 Enable the BGP neighbor.
CONFIG-ROUTER-BGP mode
neighbor {ip-address | ipv6–address | peer-group-name} no shutdown
Example conguration steps to enable BGP
NOTE
: When you change the conguration of a BGP neighbor, always reset it by entering the clear ip bgp * command in
EXEC Privilege mode.
To view the BGP conguration, 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 example shows that the summary with a 2-byte AS number using the show
ip bgp summary command.
Following is the conguration steps:
DellEMC# configure terminal
DellEMC(conf)# router bgp 65535
DellEMC(conf-router_bgp)# neighbor 20.20.20.1 remote-as 20
DellEMC(conf-router_bgp)# neighbor 20.20.20.1 no shutdown
DellEMC(conf-router_bgp)#exit
DellEMC(conf)#
The following example shows verifying the BGP conguration using the show running-config bgp command..
DellEMC#show running-config bgp
!
router bgp 65535
neighbor 20.20.20.1 remote-as 20
neighbor 20.20.20.1 no shutdown
DellEMC#
Examples of the show ip bgp Commands
Border Gateway Protocol (BGP)
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