[j-nsp] internal traffic forwarding between instances

Stefan Fouant sfouant at shortestpathfirst.net
Fri Mar 19 20:41:50 EDT 2010


No worries mate.  This is probably one of the most common things I see on a regular basis when dealing with routing instances.  Protocol information is leaked, but without leaking interfaces the physical next-hops for those routes can't be recursed.

Stefan Fouant
------Original Message------
From: Matthias Gelbhardt
To: sfouant at shortestpathfirst.net
Cc: juniper-nsp at puck.nether.net
Subject: Re: [j-nsp] internal traffic forwarding between instances
Sent: Mar 19, 2010 6:10 PM

Hi!

Seems to be working now. Thanks! I knew it was something small.

Matthias

Am 20.03.10 00:54, schrieb Stefan Fouant:
> What happens if you leak interface routes between instance1 and inet.0?
>
> Stefan Fouant
> ------Original Message------
> From: Matthias Gelbhardt
> Sender: juniper-nsp-bounces at puck.nether.net
> To: juniper-nsp at puck.nether.net
> ReplyTo: matthias at commy.de
> Subject: [j-nsp] internal traffic forwarding between instances
> Sent: Mar 19, 2010 5:08 PM
>
>
> Hi!
>
>   
>
> I try to accomplish the following:
>
>   
>
> I have two J-Series routers in chassis cluster mode. I have two reth-interfaces, reth1 and reth2. The interfaces are connected to a switch, so I have four cables to one VLAN. I have one routing-instace instance1, which is configured, together with inet.0 running OSPF.
>
>   
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> Behind the switch is a firewall, which is also running OSPF. I have configured rib-groups, so I have copied the routing tables from inet.0 to instance1.inet.0 and instance1.inet.0 to inet.0. I see all of the routes learned from OSPF. I have also copied a static default route into instance1.
>
>   
>
> Now I am killing all connections but one, which is configured to the instance1. In the routing table I see, that all the routes are destined to reth2, which is in instance1. But there seems to be no traffic forwarding. Am I lacking something? Do I have to configure something else to enable that? I use instance-type virtual-router. The forwarding has to be made internal without a physical interface. Is that possible?
>
>   
>
> Regards,
>
>   
>
> Matthias
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>    



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