Introduction to before performing BGP configurations in an IPv4 address family, you need to run the ipv4-family command in the BGP view to enable the IPv4 address family and enter the address family view. By default, BGP uses the IPv4 unicast address family.
If you want to configure the MPLS-BGP service, you should enable the VPNV4 address family.
If you want to configure the NG-MVPN, you should enable the MVPN address family.
If the network work on VPLS, you can enable the l2vpn-ad family.
Of course, if this is an IPV6 network, you can enable the IPV6 address family.
