[c-nsp] Line Code Violations

Chris Cappuccio chris at nmedia.net
Thu Jul 6 18:39:03 EDT 2006


framing is for the equipment on each endpoint

none of the equipment in the middle knows nor cares what the framing is 
set to

John Neiberger [jneiberger at gmail.com] wrote:
> On 7/6/06, Ted Mittelstaedt <tedm at toybox.placo.com> wrote:
> > switch and have the other side provide clock
> >
> > then have both sides set to obtain clock from the line
> >
> > See what happens
> >
> > Telcos these days all multiplex their circuits together - I am not sure
> > exactly
> > how they accomplish this without supplying clock to both sides.  Many of
> > our point-to-points apparently go through telco equipment that also isn't
> > sure exactly how to accomplish this either, and will supply clock, despite
> > the telco's techs protestations to the contrary.
> >
> > Ted
> 
> There are actually three legs to this circuit: two from Qwest and one
> from Time Warner Telecom. The circuit looks like this, beginning at
> our HQ:
> 
> * DS3 rides an OC12 to a Qwest CO (c-bit framing, b3zs)
> * DS3 from Qwest CO to another Qwest CO
> * Circuit jumps onto TWT facilities
> * Circuit rides TWT facilities into the remote location
> 
> Our data equipment is set to use c-bit framing and can only support
> b3zs. I found out yesterday that TWT has their section of the circuit
> set to m13 instead of c-bit. I'm assuming that that would be a problem
> so I'm trying to get them to change it. Shouldn't the line be
> provisioned for c-bit end-to-end?
> 
> Thanks,
> John
> _______________________________________________
> cisco-nsp mailing list  cisco-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/

-- 
Quis custodiet ipsos custodes?


More information about the cisco-nsp mailing list