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Cell Relay Retreat>List Archive>month:1998-Aug> msg00186



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bidirectional multicast

  • From: Teughels Michel <teughels@esat.kuleuven.ac.be>
  • Date: Wed, 19 Aug 1998 15:51:56 +0200

Hi,

In Q.2971 (about signalling for point-to-multipoint connections)
they say a network has to reject a SETUP message if the Broadband
bearer capability IE indicates "point-to-multipoint" and 
contains an ATM traffic descriptor IE with any backward cell rate
field specifying a non-zero value.

Now why is this ?  Isn't the problem of sorting out which cells
were sent by which leaf a problem of the higher layers ?

I would like to use a bi-directional pt-to-mpt ATM connection
between two end-stations (one of which with multiple ATM NICs),
and use the redundant branches as back-up connections.

Looking forward for your opinion,

Michel