IPv6 Multicast Deployment Issues

Document Type Expired Internet-Draft (individual)
Last updated 2004-02-10
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


There are many issues concerning the deployment and implementation, and to a lesser degree, specification of IPv6 multicast. This memo describes known problems, trying to raise awareness. Currently, global IPv6 interdomain multicast is completely impossible except using SSM: there is no way to convey information about multicast sources between PIM RPs. Site-scoped multicast is also problematic when used alongside to global multicast because of that. A few possible solutions are outlined or referred to. In addition, an issue regarding link-local multicast-blocking Ethernet switches is brought up. Finally, a feature request for MLD snooping switches is noted.


Pekka Savola (psavola@funet.fi)
Pekka Savola (psavola@csc.fi)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)