From: Ivan Walker (ivan@itpro.co.nz)
Date: Tue Nov 04 2008 - 05:35:50 ARST
I think you will find that the RD doesn't need to be the same on every
router for "VRF A". The RD only gets tacked onto the front of the BGP
route to make it unique. What controls the importing and exporting of
routes is the RTs. It would seem that many do use a common RD for the
same VRF across many routers but you don't have to. Actually there may
be some advantage in using seperate RDs - see
http://www.gossamer-threads.com/lists/cisco/nsp/95835?page=last
Ivan
Shaughn Smith wrote:
> It needs to be unique for specific VRF's
>
> So if VRF A uses a RD of 1:1, then on every router where VRF A lives you
> need to use an RD of 1:1
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> abderrahim sadki
> Sent: Tuesday, November 04, 2008 8:08 AM
> To: ccielab@groupstudy.com
> Subject: mpls vpn RD
>
> HI,
>
> does the RD have to be unique on all routers in your network..or it is
> enough to make it unique on one router?
>
> thanks,
> abderrahim
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