[c-nsp] 1841 suitable for BGP?

[Tony Varriale]

2811 max forwarding rate is around 50-60mbps with nothing else turned on.

I wouldn't pair up 100mbps with anything less than 3825 if you need to do it on the cheap.  

Depending what else the customer needed, I probably wouldn't touch 100mbps and BGP with anything less than a 7200 NPE400 or better.

Just for reference again, a customer with 2 full tables and a lightly used DS3 with NPE400s (with no bells on, 2 7200s with 1 DS3 into each router) is running about 5% ave CPU with max in the 40% range.  The majority of that peak CPU usage coming from our beloved BGP scanner process.

I can post a simple 72 hour graph from the sh proc cpu hist if you would like to see it.

tv

----- Original Message ----- 
From: "Paul Stewart" <pstewart at nexicomgroup.net>
To: "Tony Varriale" <tvarriale at comcast.net>; "Arnold Nipper" <arnold at nipper.de>; <peter at whole-uk.com>
Cc: <cisco-nsp at puck.nether.net>
Sent: Monday, August 28, 2006 6:38 PM
Subject: RE: [c-nsp] 1841 suitable for BGP?


Hi...

Related to this topic.... We have a customer who is lighting up a 2811
currently with 1 full and 1 partial BGP table.  They plan to put 100 meg
of traffic on this device... I don't see it handling it... Comments?

Paul Stewart
Network Administrator
Nexicom Inc.
http://www.nexicom.net/  

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Tony Varriale
Sent: Monday, August 28, 2006 7:01 PM
To: Arnold Nipper; peter at whole-uk.com
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] 1841 suitable for BGP?

>From a memory standpoint you will be fine.

But, you may want to check your CPU utilization...ave and peak.  5 full
tables would crush a 1841's cpu...even 1 would give it a run for it's
peak money.  Then add in 20mbps of throughput?  Possibly add in any
bells and whistles?  Assuming we are talking about Cisco's 1841...there
is no way.

Just for reference, I have a customer running 3745s up front with 2 full
ipv4 tables running 60-65% CPU max with QoS for voice and nothing else. 
3745s have about 3-3.5 times the HP as an 1841.

I commented on this list on 8/22 regarding a similiar subject.

tv

----- Original Message -----
From: "Arnold Nipper" <arnold at nipper.de>
To: <peter at whole-uk.com>
Cc: <cisco-nsp at puck.nether.net>
Sent: Monday, August 28, 2006 4:41 PM
Subject: Re: [c-nsp] 1841 suitable for BGP?


> On 28.08.2006 23:18 Pete Barnwell wrote
>
>> Hi,
>>
>> I'm looking at a router to handle 2 x 10Mb/s (ethernet) feeds and
>> take a full BGP routing table from both ISPs. Will an 1841 with 384Mb
>> suffice for this, or do I need to look at higher spec models?
>>
>
> That box/config  will do. I've a 1841 with 384Mb taking 5 full IPv4
> tables, 2 partial IPv4 (around 50k pfx each) + 4 full IPv6 tables
>
>
>
> Arnold
> -- 
> Arnold Nipper, AN45
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