[c-nsp] as-path access lists

[Alex Foster]

Hi Joshua,

I have now put in place an as-path access lists - but am finding Im only
getting 600 or so prefixes - is there any way to open this out - Im
really not sure how to proceed from here so If you have 5 mins Id
appreciate your help.

This is what I have configured so far

ip as-path access-list 10 permit ^3356$  ---- this is Level3 AS number

route-map Level3 permit 20
 match as-path 10

And this is what I get 

Neighbor    V    AS MsgRcvd MsgSent   TblVer  InQ OutQ Up/Down
State/PfxRcd
x.x.x.x     4  3356  651626   44838     8173    0    0 00:08:32      612

Regards

Alex



-----Original Message-----
From: joshua sahala [mailto:jejs at sahala.org] 
Sent: 15 November 2004 19:37
To: Alex Foster; cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] as-path access lists

On (15/11/04 19:29), Alex Foster wrote:
> To: cisco-nsp at puck.nether.net
> From: Alex Foster <afoster at gammatelecom.com>
> Date: Mon, 15 Nov 2004 19:29:52 -0000
> Subject: [c-nsp] as-path access lists
> 
> Do as-path access lists filter routes as they are received or after
they
> are in memory - I have a 3550 that cant handle the full list of
customer
> routes my provider is sending (+15000) - so Im wondering if I can use
> as-path access lists to restrict the amount of routes I receive (but
> still maintain a usable route table).
> 

alex,

before - i'm using an as path filter to limit the routes on a couple of
routers.  you could also limit the length of prefixes recieved.

do you need the full routing table, or would it work to just have your
provider send a default?

/joshua
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