Talk:Route distinguisher

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[edit] Meaning of RD

As per my humble understanding the RD has no meaning. The same VPN cannot have 2 RDs. BGP does not allow one to have 2 possible paths to the same destination/prefix. So for example is RD1:IPv4 is 1 prefix and RD2:IPv4 is the other prefix pointing back to the same host, then the RD has no meaning.

Seems to me it means a lot. You said "the same VPN", but what if the VPNs are different? Then RD1:IPv4 and RD2:IPv4 can (probably have to) designate different destinations (when IPv4 is the same value). That's exactly what's being distinguished by the RD. -R. S. Shaw 21:28, 19 June 2006 (UTC)

So why not "RT" Who cares about the RD anyways? eitherways if the RD does change, then the the RD has no meaning, The RT from the importing side should be sufficient to identify things —Preceding unsigned comment added by 220.227.207.194 (talk) 08:15, 18 December 2007 (UTC)

It means nothing, just a pseudo error made by knocked up coders. if the RD can change for a VPN, then the bases of BGP is violated. or can you say that RD is the same across the VPN?

Either the RD should be the AS number, or the RD has no meaning, if the AS number exists too.