[j-nsp] AS path rewriting (remove one AS)

[Harshit Kumar]

As-override knob might help, but please be advised it can cause loops.

The customer can configure this knob, it will remove AS2 and
add AS1 (customer's AS) into the as-path before advertising the
Route to anyone.

(watch for word-wrap)
http://www.juniper.net/techpubs/software/junos/junos73/swconfig73-routin
g/html/bgp-summary6.html


HTHs
Harshit


> -----Original Message-----
> From: juniper-nsp-bounces at puck.nether.net 
> [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Cougar
> Sent: Friday, November 18, 2005 4:23 AM
> To: juniper-nsp at puck.nether.net
> Subject: [j-nsp] AS path rewriting (remove one AS)
> 
> 
> Hi,
> 
> One (AS1) customer asked me could I eliminate our AS (AS2) 
> from AS path 
> that they get from us. Topology something like this:
> 
> AS1 --- AS2 --- AS3 --- AS4 ...
> 
> Currently they get prefixes with AS path "AS2 AS3 AS4 ..." 
> but they would 
> like to see "AS3 AS4 ..." ie it should look like they are directly 
> connected with AS3 and not via us. Is it possible to do and 
> if yes then 
> who should remove AS2 from this path? We (AS2) or customer 
> (AS1) itself?
> 
> I heard that it is possible with quagga to do that 
> (transparent-as) but is 
> it possible with Junos? Haven't found anything so far..
> 
> ---
> Cougar
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