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

From: Birsen Ozturk (birsen.ozturk@is.net.tr)
Date: Mon Nov 12 2001 - 07:24:40 EST


Hello
        The "weight" attribute is only locally significant. It is a value that only
makes sense to the specific router and which is not propagated or carried
through any of the route updates.
        Instead of using weight you can use "as-path prepend":

route-map AOUT permit 10
    match ip address A
    set as-prepend myas
route-map AOUT permit 20
    match ip address B

Regards
Birsen Ozturk
IsNET Network Team
tel:+903122938025

-----Original Message-----
From: pankaj [mailto:pankaj@worldgatein.net]
Sent: Monday, November 12, 2001 1:59 PM
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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