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A new version of I-D, draft-sarikaya-softwire-6rdmulticast-03.txt has
been successfully submitted by Behcet Sarikaya and posted to the IETF
This version covers both AMT and translation based multicast for 6rd.
Title: Multicast Support for 6rd
Creation date: 2012-03-25
WG ID: Individual Submission
Number of pages: 16
This memo specifies 6rd's multicast component so that IPv6 hosts can
receive multicast data from IPv6 servers. In AMT based encapsulation
solution, AMT Gateway at the 6rd Customer Edge router uses AMT
protocol to establish a tunnel interface with AMT Relay at the 6rd
Border Relay and this tunnel is used to exchange MLD messages to
establish multicast state at AMT Relay so that AMT Relay can tunnel
IPv6 multicast data to IPv6 hosts connected to AMT Gateway. In 6rd
Translation Multicast based solution, the protocol is based on
proxying MLD at the 6rd Customer Edge router and then translating MLD
messages to IGMP messages and sending them upstream to a network
which supports IPv4 multicast. 6rd Border Relay is multicast router
and IGMP-MLD translator. It translates IGMP join back to MLD join
message and sends it to multicast source. IPv6 Multicast data
received at 6rd Border Relay is translated into IPv4 multicast data
and then sent to IPv4 multicast tree downstream to 6rd Customer Edge
which translates back to IPv6 multicast data then delivers to the