The MPLS WG Archive

["Arun Kumar Dheena" <arunkumar.dheena@wipro.com>]

Hi,
      The RFC 2547bis uses BGP to distribute the VPN routes. But, we can
modify LDP itself to carry the information carried in BGP like the VPN
routes, route targets and VPN labels etc (by defining, new TLVs and new LDP
messages).

The motivation for this is, firstly, the LDP-VPNs can provide the same
scalability as in mentioned RFC2547, as the intermediate LSR's (P routers)
need not maintain the VPN-Lables and routes. (This can be achieved by
maintaining LDP sessions between the PE LSR's). Secondly, we can avoid using
BGP for MPLS-VPNs.

Will this apparach be an alternate for BGP/MPLS VPN?
Or am I missing something  fundamental?
I want to know whether any work has been done in this direction.

Thanks in advance.
regards
arun

Wipro-CDC





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