From: Dan Pontrelli (dp595@xxxxxxxxxxxxx)
Date: Fri Nov 30 2001 - 01:31:05 GMT-3
> Yes the encapsulation is independent of lower layer framing and line
coding
> but they all have to match (line coding and framing must match on both
> routers and the telco equipment).
When I say line coding and framing settings in terms of the router I'm
talking about the actual CSU (which would be set in the IOS for internal
CSUs but obviously not on external CSU units).
Dan
> For example if you order a T1 circuit from telco and telco has their
> equipment set for B8ZS line coding and ESF framing then you need to match
> this
> on both ends of the T1. Whether or not you run HDLC or PPP encapsulation
is
> independent of telco but of course must match on both routers.
> HTH.
>
> Dan Pontrelli CCIE#8040, MCSE, CNA
> NTT/Verio - Customer Engineering
>
> ... I have not failed. I've just found 10,000 ways that won't work.
> -- Thomas Edison
>
>
> > Appreciate the considerable and collectively
> > comprehensive response, you answered very well the
> > first half of the question. To phrase it better:
> >
> > Is the encap type chosen, always independent of the
> > physical framing and coding of the point-to-point T-1?
> > Does the carrier have no say or preference in the
> > encap type?
> > The answers thusfar seem to indicate that as long as
> > both ends are the same, anything goes.
> > Obviously there is a direct relationship in
> > frame-relay encapsulation to the circuit type.
> >
> > Thanx
> >
> >
> >
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