Under the global routing process any networks that you advertise to the peer are eligible for global routing table installation, under ipv4/ipv6 vrf address-family routing tables are separated by the vrf peering where if you enabled extended communities a RT can be used to achieve import/export routing policies (not enabled by default) RD required by IOS for the vrf definition but not used in the routing NLRI updates AFAIK...
& under vpnv4/vpnv6 the BGP speakers then the routing tables pass customer VPNs from source to destination (extended communities enabled by default when you activate a peer under vpnv4/vpnv6 AF) RD used to distinguish customer routes in NLRI, AFAIK vpnv4/6 are used in a core MPLS environment or BGP free core to reduce state overhead caused by full mesh BGP, the RT values are normally used to import/export customer routes between the LSRs & PE's In MPLS L3 design you will have two labels, outer label is the transport label either negotiated through TDP/LDP via an IGP IS-IS or OSPF, and an inner label called the VPN label used to route the labeled packet to the PE. Please feel free to correct my miss givings experts.... -- BR Tony Sent from my iPad On 25 Mar 2013, at 12:15, Houssam Chahine <[email protected]> wrote: > Greetings, > > I have a small question about address family. > > In Lab 3 Vol2, the peering is configured under the router process and > activated under vpnv4 address family. > > What i did was configuring the peering under the ipv4 vrf address family. > > I would like to know what is the difference between configuring the > neighbor statement under the router process and under the address family. > Furthermore is what i did correct or wrong. > > Thank you all in advance. > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com > > http://onlinestudylist.com/mailman/listinfo/ccie_rs _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com http://onlinestudylist.com/mailman/listinfo/ccie_rs
