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Route Exchange between CE and PE

  • From: Rajesh Saluja <rsaluja@nortelnetworks.com>
  • Date: Tue, 31 Oct 2000 10:57:39 -0500
  • CC: Wayne <wchan@hkwebbank.com>, mpls@UU.NET

Robert Raszuk wrote:

> > Wayne wrote:
> >
> > Hi,
> >
> > I am reading the RFC2547bis and came up with a question for route
> > exchange between the CE and PE. Suppose there are 2 CEs belongs to
> > different VRFs and connect to the same PE. RIP is used to exchange
> > routing. Though there is 2 different VRFs in the PE, would the RIP
> > process in it re-advertise the learned routes to the other CE in
> > another VPN?
>
> Not really. RIP on PE-CE1 would be isolated by implementation with the
> RIP PE-CE2. Re-advertising or inter-vrf importing is done via bgp based
> on the ext comunities values.
>
>

In the above example, If these two VRFs have at least one common VPN,
shouldn't RIP readvertise the routes learnt from one CE to other CE?

Thanks,
Rajesh