From: Gavin Schokman (g_schokman@yahoo.com.au)
Date: Sun Mar 22 2009 - 11:53:09 ART
Thanks, Scott and Ron. Both of your explanations are very much appreciated.
Kind regards,
Gavin
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Scott M Vermillion
Sent: 22 March 2009 01:30
To: ron.wilkerson@gmail.com
Cc: Gavin Schokman; ccielab@groupstudy.com
Subject: Re: OSPF support for Multi-VRF on CE routers
What he said! ;~)
(sorry for the duplication Ron, I was apparently cranking out my novella on
the topic when your response came in - I wasn't expecting that on a Saturday
night but I should've known better!)...
On Mar 21, 2009, at 7:20 , ron.wilkerson@gmail.com wrote:
> Suppressing pe checks means that the router isn't looking for the dn
> bit set in the lsa's. When you enable vrf in a router, it
> automatically tries to be a pe router. A pe router will try to avoid
> ospf routing loops by checking the dn bit.
>
> Since your router shouldn't behave like a pe router, the capability
> vrf lite command tells the router not to behave like one. And
> disables the routing loop prevention mechanism.
>
> The doc on this is very scarce.
>
> Ron
> -----Original Message-----
> From: "Gavin Schokman" <g_schokman@yahoo.com.au>
>
> Date: Sun, 22 Mar 2009 00:26:18
> To: <ccielab@groupstudy.com>
> Subject: OSPF support for Multi-VRF on CE routers
>
>
> Hi all,
>
> I've been playing with all things OSPF this weekend and I've hit a bit
> of a wall with one feature.
> The feature is "OSPF support for Multi-VR on CE Routers".
> Specifcally, I
> don't understand exactly what the "capability vrf-lite" command does.
>
> When using it in my environment, I don't see a difference between when
> I have the command in my configs and when it's not.
> Doing some digging on the net hasn't proven particularly helpful. Many
> references say it has something to do with suppressing PE checks
> without saying what those checks are.
> It may be that the scenarios I'm working on aren't making the effect
> of the "capability vrf-lite" command visible.
>
> Can someone please let me know what the command does and also what the
> "suppressed PE checks" are?
>
> Many thanks.
>
> Kind regards,
> Gavin
>
>
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