[c-nsp] Transporting TDM voice DS3s over Ethernet

[Chad Whitten]

Two DS3's worth of TDM isnt something that is going to convert easily to
ethernet - espcially 100 megabit.  Adtran has just released a product that
does TDM over ethernet (gigabit) on the scale you are describing.  DS1 &
DS0 over ethernet is possible and there are lots of vendors of equipment
that can do those, but DS3 is another matter.  Calix also produces a box
that can do DS3 but currently requires ATM.  It is in their roadmap to
move to ethernet transport as well.

The adtran product is the TA5000
http://www.adtran.com/adtranpx/Rooms/DisplayPages/LayoutInitial?Container=com.webridge.entity.Entity%5BOID%5B41313C00005AC7498C423FEDD1A3119A%5D%5D

you would need two of these devices, one at each end and they are not cheap.

also, the calix would be similar
http://www.calix.com/products/c-series/

Clayton Zekelman said:
>
>
> I would think you're going to need to convert the TDM signals into
> packets to move across the Ethernet.
>
> This would mean DSP CODEC's of some sort.  What you're really trying to
> do is transport 1344 DS0's worth of traffic.
>
> This can get expensive - its basically large scale VoIP.
>
>
>
> ----- Original Message ---------------
>
> Subject: [c-nsp] Transporting TDM voice DS3s over Ethernet
>    From: "Matthew Stainforth" <Matthew.Stainforth at nucomm.net>
>    Date: Fri, 14 Jul 2006 15:59:29 -0400
>      To: <cisco-nsp at puck.nether.net>
>
>>
>>I'm trying to find a way to transport two DS3s carrying all TDM voice
>> traffic (if it matters) over an ethernet segment.
>>
>>
>>Telco| ============= |IX building| ---------------------- |co-lo|
>> ========== |PBX|
>>
>>Where ==== is two DS3 circuits and ------ is a 100meg ethernet vlan
>>
>>I can get DS3s from the carrier to the IX but the co-lo provider only
>> does ethernet between the IX and their premises (I was assuming it was
>> sonet...so my bad)
>>
>>My first thought was to use routers with DS3 cards and bridge the
>> interfaces but it's not going to be that simple is it?
>>
>>Has anyone out there tried something like this and found a solution?
>>
>>Thanks...
>>
>>Matt...
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>
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-- 
Chad Whitten