Hey All, The route-distinguisher's purpose is to make an IPv4 prefix globally unique within the MPLS VPN M-BGP environment. I'm good with that. Some references I've seen suggest setting a unique RD per VRF (or per site if you prefer to think of it that way), so the CUST-A VRF on R1 uses RD 1:100 and the CUST-A VRF on R2 uses RD 1:200.
Would it not be a safe assumption that the two (or three, or 20) CUST-A sites (in other words, that entire VPN) would not have a uniqueness problem with prefixes? Couldn't we safely use RD 1:100 for all CUST-A sites on all PE routers without any real risk of a VPNv4 prefix collision? I guess I'm curious whether the general recommendation is to *always* use a unique value no matter what, or if it's common to use the same RD value for multiple sites of the same VPN. Any insight or real-world experience would be appreciated. Thanks! _______________________________________________ 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
