Sounds interesting.
Have you checked out the "advertise-inactive" knob?
Even then, when their packets make it to your router,
it will do it's job and look up the best path for that
packet. If the best path is via Abilene, then off it
will go.
Filter based forwarding can do what you're describing.
i.e. take all the traffic that comes in interface xyz
and forward it using a different forwarding table.
There is a technology note on filter based forwarding
at: http://www.juniper.net/techcenter/notes/552003.html
Hope this helps,
Dave Curado
/* disclaimer: I work for Juniper */
On Thu, Aug 23, 2001 at 09:45:46AM -0400, Jeff Harrington wrote:
> All,
> I'm trying to do a workaround on my network to get non-active BGP
> routes (I'll explain why) to one of my customers. CCC doesn't look like it
> will work, so I'm looking to create a new RIB in the hope I can do
> this. I'm looking for any information from people who may have tried this
> - I would rather not play on a production network if I don't have to.
>
> I have a M20 with multiple peers and customers connected to it. One of my
> peers is my preferred route, and the second is an ATM PVC that is a backup
> for most of my customers. A new customer was recently connected that
> cannot connect to my primary transit provider, so I need to get the routes
> from the secondary to them. We have the secondary set up with a local-pref
> of 10, and would prefer to keep it that way if at all possible -
> unfortunitely this keeps the routes from that provider from being placed in
> the active table, so they don't get readvertised. The new customer (and
> others soon to be connected with the same situation) are all POS OC3. I've
> seen that you can only do CCC between like interfaces so I can't do that
> between the ATM peer and the POS customers (please correct me if I'm wrong)
>
> What I would like to do is send the routes from the backup peer to a new
> RIB and export that to this customer. The customers that would need this
> would be the only people seeing this routing table, so it hopefully won't
> break my normal routing. Looking at the Juniper web page, I got the
> documentation for creating a new routing table, and some documentation on
> an option for bgp-rib, but it wasn't terribly helpful.
>
> We could also do a tunnel for this, but I am looking to avoid that if I can.
>
> (In case anyone is wondering why I can't connect these customers up
> normally, the main provider I have is Abilene, and that is a difficult
> provider to connect to in some cases. The second provider is vBNS, which
> is less restrictive)
>
> Thanks in advance for any help people can provide.
>
> Jeff
>
>
> Jeff Harrington Network Engineer
> NYSERNet 100 Elwood Davis Road
> 315.413.0345 x5858 jharring@nysernet.org
>
--"The black holes in the centers of the galaxies will slowly travel on their own, sucking mass and energy from universes wherever they contact other objects. If it's another black hole that they randomly impact, then they simply merge, to become an even larger devourer. A few hours after coming within range of one of these, Earth and any distant descendants on it will be taken out of existence." -- excerpt from E=mc^2 by David Bodanis
Have a nice day.
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