Support Multicast Services Using Proxy Mobile IPv6

1
Support Multicast Services Using Proxy Mobile
IPv6

• Juan Carlos Zúñiga
• Guang Lu
• Akbar Rahman
• IETF 76, November 2009
• http//www.ietf.org/id/draft-zuniga-multimob-smspm
  ip-00.txt

2
Summary (1/2)

• The draft discusses how multicast services and
  mobility can be supported using the current Proxy
  Mobile IPv6, IGMP/MLD protocols
• First, the draft describes scenarios to initiate
  multicast services, and inter-MAG mobility using
  one LMA
• Second, the draft proposes an improved multicast
  support using a dedicated LMA for multicast
  services
• Third, the draft discusses enhanced multicast
  mobility support utilizing handover triggers

3
Summary (2/2)

• Handover
• Mobility procedure is the same as for unicast
  service
• Additional functionality required of MAGs and
  LMAs
• MAG is the multicast proxy, and LMA as multicast
  router or proxy, as defined in RFC 4605
• Bandwidth usage
• The dedicated multicast LMA deployment approach
  can largely reduce traffic redundancy and
  bandwidth usage
• MTU
• The draft does not affect the MTU issue

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Architecture of Dedicated Multicast LMA
Multicast Services
Unicast Serices
LMA-U
LMA-M
MAG
MAG
MN
MN
MN
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Multicast Mobility Using Dedicated Multicast LMA
P-MAG
N-MAG
LMA-U
LMA-M
MN
Unicast Traffic
Multicast Traffic
Remove Unicast Tunnel
MN Detach
MN Attach to n-MAG
PBU
PBA
Unicast Traffic
PBU
PBA
Multicast Traffic
6
Conclusions

• The Dedicated multicast LMA
• eliminates tunnel convergence issue at the MAG
• reduces redundant traffic on the network
• uses PMIP mobility for continuing multicast
  services
• allows future support of multicast services in
  the PMIP domain

7
Future Work

• Comments received from mailing list
• Will update text and figures to address comments
  and better describe the proposed solution
• Thank You!