Which Router T3/E3

On Fri, 16 Jul 2004 10:45:08 -0400, Rob <> wrote:

>On Thu, 15 Jul 2004 21:59:07 -0500, Prince By-Tor <>
>wrote:
>
>>I would not use a 3745 if you're planning on expansion. Though Cisco
>>claims a 3745 can handle two DS3s, our internal lab testing says
>>otherwise. In fact, we've found that (depending on packet size,
>>routing protocols used, and other factors) a 3745 can't quite drive a
>>DS3 to full speed. In practice I've implemented a single DS3 and it
>>works OK, but it makes me nervous.
>>
>
>Really? I am putting in a 3725 with a single DS3 here shortly. I was
>under the impression it could handle one just fine. I guess I'll find
>out.

Every situation is different, but when we stressed them in our labs
they did not hold up. Again, we're running BGP, using them in large
networks with potentially large routing tables, often doing ISDN, GRE
tunnels, NAT, whatever.

Also, are you doing ATM DS3 or something else? I suppose I should
have prefixed my comments...we use exclusively ATM at >T1.

Can't remember the numbers for the 3275, but we found the 3745 topped
out around 41 megabits. Not shabby, but still.

--chris

Prince By-Tor

On Sat, 17 Jul 2004 17:22:42 -0500, Prince By-Tor <>
wrote:

>
>Also, are you doing ATM DS3 or something else? I suppose I should
>have prefixed my comments...we use exclusively ATM at >T1.
>
>Can't remember the numbers for the 3275, but we found the 3745 topped
>out around 41 megabits. Not shabby, but still.
>
>--chris

It's the standard clear channel E3/T3 interface for the 3700 series.
Not ATM. I hope you're wrong, no offense. It may be my job on the
line if it can't do 35Mb of a DS3. Damn Cisco marketing.



Robert

Rob

In article <>,
says...
[snip]
> Every situation is different, but when we stressed them in our labs
> they did not hold up. Again, we're running BGP, using them in large
> networks with potentially large routing tables, often doing ISDN, GRE
> tunnels, NAT, whatever.
>
> Also, are you doing ATM DS3 or something else? I suppose I should
> have prefixed my comments...we use exclusively ATM at >T1.
>
> Can't remember the numbers for the 3275, but we found the 3745 topped
> out around 41 megabits. Not shabby, but still.


Adding GRE to the mix can be a deal breaker.


--

hsb

"Somehow I imagined this experience would be more rewarding" Calvin
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