Cell Relay Archive

[Sripriya Raghunathan <sripriyar@yahoo.com>]

Hi Mukul,
> > 
> > Hi Ronald,
> > 
> > If you are doing your signaling in some VPI (say 10) other than the
> > default VPI 0, then then data VCC should also be created in the same
> > VPI (10) in which signaling is done. This is called associated
> > signaling. 
> 
> Associated signalling has nothing to do with the VPI of the
signalling channel,
> Associated signalling is one, for which the signalling VC signals
for all the VCs
> in the given VP only and for no other VC not present within the VP
carrying the
> signalling VC. 
>

  You are right. But what I tried to explain in my earlier mail is
that in UNI3.1 or UNI4.0, signaling VC can only be 0,5. You can use
some other VP as Signaling VC only in PNNI Signaling that too only in
the case of associated signaling. UNI doesn't allow any signaling VC
other than 0,5.
 
> You can have the signalling channel within the VP numbered VPI-10
and still perform
> the signalling for VCs beyond those within the VPI-10, or for a
group of
> VPs, or even for all the VCs.
> 
> 
> 
> > 
> > This associated signaling what you have asked, is not allowed in
> > UNI3.1 and UNI4.0. This is allowed only in PNNI Signaling right now.
> 
> True Q.2931 and PNNI supports associated signalling.
> 
> 
> _______________________________________
> 
> On Thu, 23 Jul 1998, Ronald Yap wrote:
> 
> > Hi Folks,
> > 
> > I have a basic question on UNI3.1/UNI4.0...
> > 
> > If I create a PVP (vpi=10) and enable UNI signalling on that path,
will all
> > subsiquent data-VCC created (via signalling) contained within the
same PVP??
> 
>  The problem with this configuration is that at the access switch
the VPC ( irrespective 
>  of SVPC or PVPC) shall be completely switched to the egress port, 
>  not giving the signalling entity to look into the signalling
messages flowing through the
>  signalling channel within this VP. 
>  
>  You shall not be able to signal for any VC within the VP far aside
outside the VP that has been
>  configured to PVP, with the standard implementation of signalling
protocols. 
>  Yes but an end to end signalling should be possible with the either
ends understanding the 
>  proprietry VP/VC assignments for each call, 
> 
> > 
> > Is this specified in the standard documents? Or can the data-VCC
be on
> > different PVPs?
> > 
> > Please advice...thanks.
> > /ronald
> > 
> 


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