[j-nsp] next hop behavior within between VRFs

[Ido Szargel]

Hi Stacy,

Our  topology is

LNS --- MX vrf A --- logical tunnel --- MX vrf B --- logical tunnel --- MX
inet.0

What we're trying to accomplish is pretty simple, due to special needs of
our customer most traffic should be forwarded to servers in vrf B,
In order to do that we advertise a default route from inet.0 into vrf B and
from vrf B into vrf A, we also advertise the customers routes the other way
around (from vrf A to vrf B and from vrf B to inet.0)
Then we need to catch the traffic as it enters vrf B to redirect it to the
servers, this is what the lt is for.


Regards,
Ido


-----Original Message-----
From: juniper-nsp-bounces at puck.nether.net
[mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Stacy W. Smith
Sent: Saturday, February 04, 2012 11:28 PM
To: Amos Rosenboim
Cc: juniper-nsp at puck.nether.net
Subject: Re: [j-nsp] next hop behavior within between VRFs

Hi Amos,

I'm not sure I completely understand what you're trying to accomplish. Could
you give us an example topology diagram?

Thanks,
--Stacy

On Feb 4, 2012, at 1:20 PM, Amos Rosenboim wrote:

> Hi All,
> 
> I have a router with two VRFs.
> I need to apply FBF on traffic flowing between the two VRFs so I created a
logical tunnel that connects the two VRFs.
> The problem is that when importing routes from one VRF to the other the
next hop is obviously not through the tunnel.
> I am trying to apply an import map that will change the next-hop of
imported routes to the tunnel interface, but it doesn't work (traffic still
bypasses the tunnel).
> 
> I can obviously skip the VRF import method and simply run BGP over the
tunnels but I would like to avoid this as it forces me to use route
refection (the routes I need to announce are learnt via iBGP) and so on.
> Any ideas how to achieve the goal of sharing routes between the VRFs but
controlling the next hop in each VRF differently ?
> 
> Regards
> 
> Amos
> 
> 
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> juniper-nsp mailing list juniper-nsp at puck.nether.net 
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