[122654] in North American Network Operators' Group
Re: Latest Cisco for small dual homed ASN
daemon@ATHENA.MIT.EDU (William Herrin)
Thu Feb 18 17:06:28 2010
In-Reply-To: <alpine.BSF.2.00.1002111346080.35001@mail.pil.net>
From: William Herrin <bill@herrin.us>
Date: Thu, 18 Feb 2010 17:05:35 -0500
To: James Smallacombe <up@3.am>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Thu, Feb 11, 2010 at 1:53 PM, James Smallacombe <up@3.am> wrote:
> I have a customer that is looking at using BGP for their network; one
> connection over a few bonded T1s, the other over a Comcast Enterprise
> connection (which supposedly will do BGP now).
>
> When I was dual homed a few years ago, a 7204VXR with 256MB was more than
> adequate. =A0With routing tables growing the way they are, what's a good =
Cisco
> based solution on the lower end of the price spectrum that should handle
> this fine for a few years?
I use 2811s in a couple of similar configurations. One of them
currently uses about 400M of the 768M ram with 4 BGP feeds and
"soft-reconfiguration inbound." Another with just one BGP feed and
soft-reconfiguration takes about 300M. Needs a minute or so to recover
from one of the BGP links dropping but otherwise it keeps up with my
light-weight traffic just fine. In both cases the packets are
cpu-switched and normal CPU load (when a link isn't collapsing or
returning) is under 10%.
--=20
William D. Herrin ................ herrin@dirtside.com bill@herrin.us
3005 Crane Dr. ...................... Web: <http://bill.herrin.us/>
Falls Church, VA 22042-3004
