Multicast service delivery in PMIPv6 domains draftcontrerasmultimobmsd00

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Multicast service delivery in PMIPv6
domainsdraft-contreras-multimob-msd-00

• L.M. Contreras, C.J. Bernardos, I. Soto
• Universidad Carlos III de Madrid (UC3M)
• Hiroshima, MULTIMOB WG, 2009-11-12

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Key points

• MAG maintains the MNs multicast status
• MAG as MNs first-hop
• LMA(-unicast) is not strictly required for
  multicast traffic management
• MAG as MLD proxy LMA receives a summary of MNs
  subscriptions (no vision of individual
  subscriptions)
• MAG as multicast router multicast traffic
  management local at MAG
• MN keeps IP address as it moves
• MNs always reachable through LMA based on MN-HoA

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possible roles for MAG
Unicast traffic
Scenario to be worked out according to WG charter
MAG as MLD Proxy (one instance per MAG)
Proxy CoA
LMA
Wireless Access Network
LMAA
MN
MAG
Dedicated LMA for mcast traffic
Multicast traffic
Mcast source
Upstream interface
Mcast Router
Unicast traffic
MAG as multicast router
Proxy CoA
LMA
Wireless Access Network
LMAA
MN
MAG
Multicast traffic
Mcast source
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pMAG-assisted handoverdedicated LMA for
multicast traffic
MN1
nMAG
LMA-u
LMA-m
pMAG
Mcast Data
(S1,G1)
ltLMAA,pPCoA(S1,G1)gt
MN detached
MN Detached Event
DeReg PBU
Unicast encapsulation of mcast flow sent to MN-HoA
PBA
ltpPCoA,LMAA (pPCoA,MNHoAS1,G1)gt
Set Timer
MN attached
PBU
PBA
Mcast flow decapsulation
ltLMAA,nPCoA (pPCoA,MNHoAS1,G1)gt
(S1,G1)
MLD Report
MLD Report
(S1,G1)
ltLMAA,nPCoA(S1,G1)gt
Timer expiration
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pMAG-assisted handoversame LMA for unicast and
multicast traffic
MN1
nMAG
LMA
Mcast source
pMAG
(S1,G1)
Mcast Data
ltLMAA,pPCoA(S1,G1)gt
MN detached
MN Detached Event
DeReg PBU
Unicast encapsulation of mcast flow sent to MN-HoA
PBA
ltpPCoA,LMAA (pPCoA,MNHoAS1,G1)gt
Set Timer
MN attached
PBU
PBA
Mcast flow decapsulation
ltLMAA,nPCoA (pPCoA,MNHoAS1,G1)gt
(S1,G1)
MLD Report
MLD Report
(S1,G1)
Timer expiration
ltLMAA,nPCoA(S1,G1)gt