[157936] in North American Network Operators' Group

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Re: MPLS acceptable latency?

daemon@ATHENA.MIT.EDU (Mikeal Clark)
Thu Nov 15 14:35:54 2012

In-Reply-To: <0ADAD17B-1B4C-4C01-9449-FBA45AC49C84@puck.nether.net>
Date: Thu, 15 Nov 2012 13:35:13 -0600
From: Mikeal Clark <mikeal.clark@gmail.com>
To: Jared Mauch <jared@puck.nether.net>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

The location in question is 7 T1s.  They were not willing to give us fiber.

On Thu, Nov 15, 2012 at 1:20 PM, Jared Mauch <jared@puck.nether.net> wrote:
>
> On Nov 15, 2012, at 2:15 PM, Scott Weeks wrote:
>
>>
>>
>> --- mikeal.clark@gmail.com wrote:
>> From: Mikeal Clark <mikeal.clark@gmail.com>
>>
>> I have some AT&T MPLS sites under a managed contract with latency
>> averaging 75-85 ms without any load.  These sites are only 45 minutes
>> away.  What is considered normal/acceptable?
>> --------------------------------------------
>>
>>
>> Coast-to-coast latency is around 60-65msec, so that's high.
>
> What link speed?
>
> Perhaps he's using ISDN or a T1?
>
> Serialization delay is not to be ignored.
>
> - Jared
>


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