Re: [nsp] is set weight usafull to announce backup route??

From: Ryan OConnell (ryan@complicity.co.uk)
Date: Mon Nov 12 2001 - 06:56:01 EST


Weight is a local metric only, you probably want to use AS path prepending instead. (Set as-path prepend <your-as> <your-as> <your-as>)

-----Original Message-----
From: "pankaj" <pankaj@worldgatein.net>
Date: Mon, 12 Nov 2001 17:28:37
To: <cisco-nsp@puck.nether.net>
Subject: [nsp] is set weight usafull to announce backup route??

Dear friends,
I have connectivity from two different multihome provider( PROVIDER-A and
PROVIDER-B) now i have one IP block of /23 i have divided it in to two /24
networkA and networkB.
Now i want to annouce netA to providerA and backup of that to provider B.
and netB to providerB and backup of that to providerA.

should i do it using weight attribute.
My proposed solution is as follow , will it work????

router bgp myas
neighbour ip-providerA remote-as A-AS
neighbour ip-providerA route-map AS AOUT out
neighbour ip-providerB remote-as B-AS
neighbour ip-provider B route-map AS BOUT out
network IP-networkA mask-networkA
network IP-networkB mask-networkB

route-map AOUT permit 10
    match ip address A
    set weight 100
route-map AOUT permit 20
    match ip address B
    set weight 200

route-map BOUT permit 10
    match ip address A
    set weight 200
route-map BOUT permit 20
    match ip address B
    set weight 100

access-list A permit networkA
access-list B permit networkB

Is this config work as my requirement.
Waiting for your all's immediate reply.

Thanks
pp

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