[c-nsp] Transporting TDM voice DS3s over Ethernet

[Chad Whitten]

I have to agree.  I had tremendous problems transporting 4 DS1's over a 10
megabit ethernet link.  Also, the ethernet connection must be a layer 2
connection and not a routed layer 3 connection.  Trying to do this over a
routed connection induces all kinds of problems with timing and such.

No one has asked this yet, so I will:  would it be feasible to install
some sort of VoIP gateway and move away from TDM or are you actually using
that many voice channels?

Tim Devries said:
> I would say it's very unlikely.  The best bet is Gig IMO.
>
>
> Thanks,
>
> Tim
>
> ________________________________
>
> From: Frank Bulk [mailto:frnkblk at iname.com]
> Sent: Sat 7/15/2006 1:39 PM
> To: Tim Devries; cisco-nsp at puck.nether.net
> Subject: RE: [c-nsp] Transporting TDM voice DS3s over Ethernet
>
>
>
> So what you're saying is that two unframed DS-3's won't work over 100
> Mbps Ethernet, correct?
>
> Frank
>
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Tim Devries
> Sent: Saturday, July 15, 2006 11:27 AM
> To: cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] Transporting TDM voice DS3s over Ethernet
>
> Just FYI for anyone interested, we use these products and although they
> work very well, they add about 40%overhead.  So for example a T1 will
> use a solid 2M, which is not terrible if bandwidth is cheap where you
> are, but it can be a bit of a pain when bandwidth is at a premium (like
> it is for us).
>
> Regards,
>
> Tim
>
> ________________________________
>
> From: cisco-nsp-bounces at puck.nether.net on behalf of Clayton Zekelman
> Sent: Sat 7/15/2006 11:14 AM
> To: Robert E. Seastrom
> Cc: Matthew Stainforth; cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] Transporting TDM voice DS3s over Ethernet
>
>
>
>
> Interesting product.
>
> At 10:04 AM 7/15/2006, Robert E. Seastrom wrote:
>
>
>>Clayton Zekelman <clayton at mnsi.net> writes:
>>
>> > Point me to such a commercial product that will correctly transport
>> TDM voice frames across Ethernet at that scale that does not use
>> VoIP or DSP's.
>>
>>Be glad to; TDM over IP is low art these days.  The RAD IPmux-16 will
>> transport up to 16 x T1s or 2 x T3s across IP.
>>
>>http://www.rad-direct.com/Product-TDM-over-IP-Gateway-IPmux-16.htm
>>
>> > If one does not already exist, then basically, you're describing a
>> science fair project.
>>
>>Do you suppose you could spare us the waspishness in followup posts?
>
>
> WTF is "waspishness"?  I didn't appreciated Cappucios' allegation of
> illicit drug use, so my response was a bit terse.
>
>
>>Best,
>>
>>                                         ---Rob
>
> ---
> Clayton Zekelman
> Managed Network Systems Inc. (MNSi)
> 344-300 Tecumseh Rd. E.
> Windsor, Ontario
> N8X 5E8
>
> tel. 519-985-8410
> fax. 519-258-3009
>
>
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-- 
Chad Whitten