[c-nsp] VRF-lite question on RD's

[Brandon Bennett]

My guess is they are doing vrf-lite and using frame-relay or dot1q to bring
these 3 VRFs to you.  Which means the RD (used for MPLS L3VPNs) are only
locally significant in the case of vrf-lite and are arbitrary numbers.   It
would be nice if Cisco didn't require RD's for vrf-lite cause they service
no purpose.

Now the import and export statements in vrf-lite also serve no purpose, but
also not required.  Interesting that they exist in the config.

As long as no interfaces are configured with 'mpls ip'  and you don't have a
'address-family vpnv4' configured under BGP those values are meaningless
outside of the local router.

HTH,

Brandon

On Thu, Apr 2, 2009 at 9:59 AM, ChrisSerafin <chris at chrisserafin.com> wrote:

> I have 3 VRF's on a CE router:
>
>
>
> ip vrf xxx-General
> rd 1:10
> route-target export 1:10
> route-target import 1:10
> !
> ip vrf xxx-Guest
> rd 1:30
> route-target export 1:30
> route-target import 1:30
> !
> ip vrf xxx-Voice
> rd 1:20
> route-target export 1:20
> route-target import 1:20
>
> I just got 3 new VRF's from the ISP confgured, and I'm wondering what
> numbers I need to have for the 'rd' and 'route-target xxport' commands...?
> Are these arbitrary, come from the ISP, or can I just use 40, 50, and 60?
>
>
> Thanks,
>
> chris
>
>
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