The IP Over NBMA (ION) Archive

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 A New Internet-Draft is available from the on-line Internet-Drafts 
 directories. This draft is a work item of the Internetworking Over NBMA 
 Working Group of the IETF.                                                

       Title     : Multicast Server Architectures for 
                   MARS-based ATM multicasting.                                           
       Author(s) : R. Talpade, M. Ammar
       Filename  : draft-ietf-ion-marsmcs-00.txt, .ps
       Pages     : 22
       Date      : 07/30/1996

A mechanism to support the multicast needs of layer 3 protocols in general,
and IP in particular, over UNI 3.0/3.1 based ATM networks has been 
described in draft-ietf-ipatm-ipmc-12.txt.  Two basic approaches exist for 
the intra-subnet (intra-cluster) multicasting of IP packets. One makes use 
of a mesh of point to multipoint VCs (the 'VC Mesh' approach), while the 
other uses a shared point to multipoint tree rooted on a Multicast 
Server (MCS). This memo provides details on the design and 
implementation of an MCS, building on the core mechanisms defined in 
draft-ietf-ipatm-ipmc-12.txt.  It also provides a mechanism for using 
multiple MCSs per group for providing fault tolerance.  This approach can 
be used with draft-ietf-ipatm-ipmc-12.txt based MARS server and clients, 
without needing any change in their functionality.                         

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