[c-nsp] Removing the Route Server ASN

[Vinny_Abello at Dell.com]

What was meant is remove it from the AS path, not the server itself. You still peer with the route server using the AS number for the route-server, but it doesn’t add its own AS to the AS path and further it doesn’t do next-hop-self so it retains the original next-hop on the exchange. Clients of the route-server also need to make sure they disable any checks on the propagated prefixes that mandate the first AS in the AS path be the peer AS.

-Vinny

From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Sharlon Carty
Sent: Wednesday, June 09, 2010 9:39 AM
To: Nick Hilliard; Yap Chin Hoong -
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Removing the Route Server ASN

But if you remove the ASN of the route server how would the clients peer with it?


Sharlon Carty

ICT Technician



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From: cisco-nsp-bounces at puck.nether.net<mailto:cisco-nsp-bounces at puck.nether.net> on behalf of Nick Hilliard
Sent: Wed 6/9/2010 5:50 AM
To: Yap Chin Hoong -
Cc: cisco-nsp at puck.nether.net<mailto:cisco-nsp at puck.nether.net>
Subject: Re: [c-nsp] Removing the Route Server ASN

On 09/06/2010 07:17, Yap Chin Hoong - wrote:
> Hi all, I got hooked into this BGP route server implementation. Any
> working configuration that you can share with me to remove the ASN of
> the route server when relaying the BGP routes among the route server
> clients? Thanks. :-)

You can't currently do this with IOS.  If you want to implement a route
server, (i.e. ebgp route reflection), then you need to use Quagga, OpenBGPD
or BIRD.

http://www.quagga.net/
http://www.openbgpd.org/
http://bird.network.cz/

Nick
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