[42776] in North American Network Operators' Group
Re: DS3 encapsulated in OC3c?
daemon@ATHENA.MIT.EDU (Neil J. McRae)
Fri Sep 21 04:29:47 2001
In-Reply-To: <29951.1001002894@sunf25> from Simon Lockhart at "Sep 20, 2001 05:21:34 pm"
To: simonl@rd.bbc.co.uk (Simon Lockhart)
Date: Fri, 21 Sep 2001 09:33:37 +0100 (BST)
Cc: nanog@merit.edu
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From: neil@DOMINO.ORG (Neil J. McRae)
Errors-To: owner-nanog-outgoing@merit.edu
I was going to suggest UTI but I don't think it supports DS-3 serial
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s18/uti_gsr.htm maybe worth speaking to cisco to see
if they have done anything with DS3 ports. as they support T1, Ethernet and
OC3.
Xylan used to do a pizza box switch that did DS-3 Circuit emulation
over ATM.
Regards,
Neil.
>
> All,
>
> I'm about to bring up a transatlantic 622M circuit, and am stuck with an
> annoying SDH/SONET problem.
>
> We use the Cisco 15454 SONET mux on our network, and although we'd ordered
> a SONET OC12 circuit, we've since been told that it'll actually be an SDH
> STM-4 circuit. This shouldn't be a problem, as the carrier can convert
> from SDH to SONET at their handoff, or we can convert from SDH to SONET on
> the way into the 15454. However, unfortunately both solutions leave us in
> the situation where the smallest SONET unit we can use is an STS-3c - and
> we need at least one DS3 circuit running over this.
>
> So, I'm stuck trying to carry a DS3 in an STS-3c carrier (or, another
> similar solution).
>
> Does anyone have any suggestions for a "cheap" box that will do this -
> without getting into buying a full SDH mux?
>
> Thanks,
>
> Simon
> --
> Simon Lockhart | Tel: +44 (0)1737 839676
> Internet Engineering Manager | Fax: +44 (0)1737 839516
> BBC Internet Services | Email: Simon.Lockhart@bbc.co.uk
> Kingswood Warren,Tadworth,Surrey,UK | URL: http://support.bbc.co.uk/
>
>
>
