The value of tBgpPeerFamily specifies the types of routing
information to be distributed by the local side of this Peer of
the BGP protocol. BGP was initially designed for the distribution
of IPv4 routing information. Multi-protocol extensions and the
use of a VPN-IPv4 address have been added to extend its ability
to carry overlapping routing information. A 'vpnIpv4' address is
a 12-byte value consisting of the 8-byte route distinguisher, RD,
and the 4-byte ipv4 IP address prefix. The RD must be unique
within the scope of the VPRN. This allows the IP address prefixes
within different VRFs to overlap.
This object has been obsoleted in release 6.0.