Setup Guide

The following example shows the bgp asnotation asdot+ command output.
DellEMC(conf-router_bgp)#bgp asnotation asdot+
DellEMC(conf-router_bgp)#sho conf
!
router bgp 100
bgp asnotation asdot+
bgp four-octet-as-support
neighbor 172.30.1.250 remote-as 18508
neighbor 172.30.1.250 local-as 65057
neighbor 172.30.1.250 route-map rmap1 in
neighbor 172.30.1.250 password 7 5ab3eb9a15ed02ff4f0dfd4500d6017873cfd9a267c04957
neighbor 172.30.1.250 no shutdown
5332332 9911991 65057 18508 12182 7018 46164 i
Configuring a BGP peer
To configure BGP between two peers, use the following commands.
Following are the steps to configure a BGP peer. The following example configuration demonstrates how the configure a
neighbor and IPv4 multicast address family. The default is IPv4 unicast address family.
● Enter the router configuration mode and the AS number.
CONFIG mode
router bgp as-number
● Add the IP address of the neighbor for the specified autonomous system.
CONFIG-ROUTER-BGP mode
neighbor {ip-address | ipv6–address | peer-group-name} remote-as as-number
● Enable the neighbor.
CONFIG-ROUTERBGP mode
neighbor ip-address | ipv6-address | peer-group-name no shutdown
● Specify the IPv4 address family configuration.
CONFIG-ROUTER-BGP mode
address-family ipv4 [multicast | vrf vrf-name]
multicast — Specifies the IPv4 multicast address family.
vrf vrf-name — Specifies the name of VRF instance associated with the IPv4 address-family configuration.
● Enable the neighbor to exchange prefixes for IPv4 unicast address family.
CONFIG-ROUTER-BGP-AF (Address Family) mode
neighbor {ip-address | ipv6–address | peer-group-name} activate
NOTE:
Neighbors have to be activated using neighbor activate command in the respective address family to
exchange other address prefix types such as IPv4 multicast and IPv6 unicast.
DellEMC(conf)# router bgp 10
DellEMC(conf-router_bgp)# neighbor 20.20.20.1 remote-as 200
DellEMC(conf-router_bgp)# neighbor 20.20.20.1 no shutdown
DellEMC(conf-router_bgp)# address-family ipv4 multicast
DellEMC(conf-router_bgp_af)# neighbor 20.20.20.1 activate
DellEMC(conf-router_bgp_af)# exit
Following is the sample output of show ip bgp ipv4 multicast summary command.
DellEMC# show ip bgp ipv4 multicast summary
BGP router identifier 1.1.1.1, local AS number 10
BGP local RIB : Routes to be Added 0, Replaced 0, Withdrawn 0
1 neighbor(s) using 8192 bytes of memory
Neighbor AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/Pfx
20.20.20.1 200 0 0 0 0 0 00:00:00 0
DellEMC#
176
Border Gateway Protocol (BGP)