[c-nsp] 28xx and a DS3

[John Neiberger]

There is a difference between being able to terminate those services and
being able to run them at line rate. If you need to run a DS3 at line
rate, a 2821 is not going to do it. You can terminate a DS3 on an 2821
but you'll never be able to push it to full capacity. If you want an ISR
that can do a line rate T3, you need a 3845.

John
--

>>> "Chris Moore" <chris.moore at gmd.com> 4/5/06 12:55:45 PM >>>

These are the kinds of documents that cunfuse me - according to the
doc
below, a 2811 should be able to handle a DS3 and + several T1s (at
least
if you could stuff it with that many interfaces). But Cisco's 28xx
data
sheet says two T1s. I realize that it is greatly effected by what sort
of features are running, but that's a pretty big spread!

I believe (correct me if I'm wrong from my original description) that
my
traffic should be mostly - if not entirely - CEF switched.

C


-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net 
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Seth Mattinen
Sent: Wednesday, April 05, 2006 11:55 AM
To: cisco-nsp at puck.nether.net 
Subject: Re: [c-nsp] 28xx and a DS3

Tom wrote:
> On Wed, 5 Apr 2006, chip wrote:
>> Just an FYI, I don't think a 2800 series router can handle a
full-rate DS3:
>>
http://www.cisco.com/en/US/products/hw/modules/ps2797/products_data_shee

t0918$
>> "Cisco 2800  -  Subrate T3/E3 with concurrent services"
>
> I have yet to find documentation that explains the full capacity of
a
2800
> series. The clearest documentation I found described that a 2821
could
> handle about 3000pps maximum (assuming linear scaling).
>
> Seems a little bit poor to me.
>

This says 90,000pps to 220,000pps, with the 2821 at 170,000:

http://www.cisco.com/warp/public/765/tools/quickreference/routerperforma
nce.pdf


--
sethm at rollernet.us 
Ne cede malis sed contra audentior ito
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