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Cell Relay Retreat>List Archive>month:1998-Apr> msg00265



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Re: What is "virtual UNI"?

  • From: "M. S. Srikrishna" <mss@fns.com>
  • Date: Mon, 27 Apr 1998 11:47:00 -0400

ronald h. davis wrote:
> 
> Peter Field wrote:
> >
> > Each customer signalling channel (VPi=0/VCi=5) would have to be
> > cross-connected to a unique VPi/VCi on the output, but an ATM switch
> > will only terminate signalling on VPi=0/VCi=5. The "Virtual UNI"
> > overcomes this problem by allowing multiple signalling channels,
> > creating a number of "virtual UNIs", one for each customer, by allowing
> > each customer to use a specific VPi. So customer 1 could use
> > VPi=1/VCi=5, etc ...
> >
> 
> peter,
> 
> very good explanation of virtual uni.  this sounds kind of like
> meta-signalling.  my question is, how do the signalling channel
> assignments get made?

I realize I am not Peter, but I will take a stab anyway.

Like you said, it sounds like Meta-signalling one could use the
meta-signalling channel VPI=0, VCI=1 to do the above setup OR one could
do via manual provisioning. Note that the meta-signalling channel does
not need an AAL layer since most of the info exchanged with the switch
fits in one ATM cell, the last time I checked.

Any corrections welcome..

Regards..

Srikrishna..

PS : The above represent my personal views NOT that of my employer

> 
> --
>   __  ______  __  / __/ |       lucent technologies, naperville il, usa
> _/ (_(_) / (_(_/_/_(_/  .       ronald.h.davis@lucent.com
> for there are many great deeds done in the small struggles of life.
> life, misfortune, isolation, abandonment, poverty, are battlefields
> which have their heros; obscure heroes, sometimes greater than the
> illustrious heros.
>                                 -victor hugo