[nsp] BGP4 and high Ping Times

[Stephen J. Wilcox]

well cef is the way it processes packets transiting the router, if your just
pinging the router itself then you wont see a difference. but i'm sure your
reason for having the router is to route not be pinged so you want cef else your
performance will spiral into nothing

from the other email you have 3x full tables (120000 each) plus 12 peers so your
doing upwards of 350000 routes on this box

short answer is you're overloading it, buy something bigger if you must carry
this number of routes

as per other emails, if you can eliminate the routes you should be
fine.. consider using a default to the upstream rather than a full table, you
can use multiple defaults with equal or different metrics for different results

Steve



On Thu, 30 Jan 2003, Lukas Krattiger wrote:

> Some People I was talking to told me this would solve the issue, but we
> couldn't found a difference between cef enabled or disabled; acctualy I'm
> not that good with some cisco services :-)
> At the moment I only care about this latency because of it looks not nice,
> and I really wanna go into understand this issue and try to tweak the box a
> bit.
> 
> -Lukas
> 
> 
> -----Original Message-----
> From: Stephen J. Wilcox [mailto:steve at telecomplete.co.uk] 
> Sent: Donnerstag, 30. Januar 2003 19:31
> To: Lukas Krattiger
> Cc: cisco-nsp at puck.nether.net
> Subject: RE: [nsp] BGP4 and high Ping Times
> 
> 
> 
> why are you disabling cef? without it your switching is cpu based.. and your
> packets are queued alongside the bgp process. 
> 
> Steve
> 
> 
> 
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