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I-D ACTION:draft-ietf-magma-msf-api-04.txt



A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Multicast & Anycast Group Membership Working Group of the IETF.

	Title		: Socket Interface Extensions for Multicast Source 
                          Filters
	Author(s)	: D. Thaler, B. Fenner, B. Quinn
	Filename	: draft-ietf-magma-msf-api-04.txt
	Pages		: 20
	Date		: 2003-3-21
	
IGMPv3 for IPv4 adds the capability for applications to express
source filters on multicast group memberships, which allows
receiver applications to determine the set of senders (sources)
from which to accept multicast traffic.  This capability also
simplifies support of one-to-many type multicast applications.  It
is expected that in the near future, the same capability will be
available in IPv6 as well.
This document specifies new socket options and functions to manage
source filters for IP Multicast group memberships.  It also
defines the socket structures to provide input and output
arguments to these new APIs.  These extensions are designed to
provide access to the source filtering features, while introducing
a minimum of change into the system and providing complete
compatibility for existing multicast applications.

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