[125387] in North American Network Operators' Group
Re: Router for Metro Ethernet
daemon@ATHENA.MIT.EDU (Da Shi)
Wed Apr 14 00:20:43 2010
In-Reply-To: <BC7EB6E4BEB341F4802932C5E8BCCB96@flamdt01>
From: Da Shi <da.shi@3z.ca>
Date: Wed, 14 Apr 2010 00:20:14 -0400
To: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
plz dont go with 3825/3845 unless you need it for voice etc. we have
clients run 3825/3845 and they don't work properly beyond 50mbps with
traffic shaping.
On Wed, Apr 14, 2010 at 12:12 AM, Tony Varriale <tvarriale@comcast.net> wro=
te:
> Cisco rates it at 256mbps which places it above a NPE-400.
>
> The 3825 says 179mbps on their spec sheet. =A0Not sure where you are gett=
ing
> your numbers but they are way off.
>
> All of those numbers are straight forwarding with nothing turned on and 6=
4
> byte packets. =A0That way you get a nice idea of what the CPU can do.
>
> tv
> ----- Original Message ----- From: "Bill Stewart" <nonobvious@gmail.com>
> To: <nanog@nanog.org>
> Sent: Monday, April 12, 2010 1:27 PM
> Subject: Re: Router for Metro Ethernet
>
>
>> On Mon, Apr 12, 2010 at 10:55 AM, Dylan Ebner <dylan.ebner@crlmed.com>
>> wrote:
>>>
>>> However, this router also has 2 100mb connections from local lans that =
it
>>> is also terminiating.
>>> For our 100mb metro e connections we use 3845s. The 100 mb service
>>> terminates into NM-GEs, which have a faster throughput than the hwics.
>>
>> Be careful using 3845s for 100 Mbps connections or above - Cisco rates
>> them at 45 Mbps (and 3825 at half of that) but last time I checked
>> doesn't make any promises at faster than T3. =A0They're being
>> conservative about it, but one thing that really can burn the
>> horsepower is traffic shaping, which you need with some MetroE
>> carriers.
>>
>>
>> --
>> ----
>> =A0 =A0 =A0 =A0 =A0 =A0Thanks; =A0 =A0 Bill
>>
>> Note that this isn't my regular email account - It's still experimental =
so
>> far.
>> And Google probably logs and indexes everything you send it.
>>
>
>
>
