[c-nsp] 2621 with cef

[Church, Chuck]

I think Cisco spec's all devices using 64 byte frames.  Bigger frames
will mean more throughput, but you won't ever get the rated PPS with
full size frames (at least not on a CPU-based router).  You'll get maybe
half that, or less.  Also, I think they test with a limited number of
flows, no ACLs/NAT/routing protocol, etc.  Real world traffic (or a DOS)
will bring it down a bunch...


Chuck Church
Lead Design Engineer
CCIE #8776, MCNE, MCSE
Netco Government Services - Design & Implementation Team
1210 N. Parker Rd.
Greenville, SC 29609
Home office: 864-335-9473
Cell: 864-266-3978
cchurch at netcogov.com
PGP key: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x4371A48D 


-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Jon Lewis
Sent: Thursday, October 27, 2005 11:22 AM
To: andrew2 at one.net
Cc: cisco-nsp at puck.nether.net
Subject: RE: [c-nsp] 2621 with cef

On Thu, 27 Oct 2005 andrew2 at one.net wrote:

>> Your 2621XM is spec'd at 15.36Mbps.  Unless the pdf is
>> incorrect, I find it pretty hard to believe you have one
>> pushing 40Mbps.
>
> I routinely push ~60mbps through a pair of 2621's.  (In fact somewhere

Odd.  It's very uncisco-like for them to post specs underrating their 
routers' capabilities.  Perhaps its done in this mid/low end gear to 
discourage service providers from using them as anything other than CPE.

----------------------------------------------------------------------
  Jon Lewis                   |  I route
  Senior Network Engineer     |  therefore you are
  Atlantic Net                | 
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