What is the use of
"no bgp default ipv4-unicast" command ?
As per my info by default router exchange IPv4 prefixes.To change this default behavour we have to option to exchange vpnv4 prefies=>
1.Use of "no bgp default ipv4-unicast" command.
2.configure BGP neighbour under BGP and activate the same for in VPNv4 address fanily.
Is this correct ?