1. Thomas C. Schmidt t.schmidt@ieee.org HAW Hamburg
Multicast Listener Extensions for MIPv6 and PMIPv6 Fast Handovers draft-schmidt-multimob-fmipv6-pfmipv6-multicast-01
Thomas C. Schmidt
HAW Hamburg

2. Status of the Draft Initial presentation
Extends FMIPv6 / PFMIPv6 with joint multicast context transfer messaging
Previous works:
draft-suh-mipshop-fmcast-mip6-00 (FMIP, 2004)
draft-xia-mipshop-fmip-multicast-01 (FMIP, 2007)
draft-hui-multimob-fast-handover-00 (PFMIP, 2009)

3. Main Contributions
Defines a coherent multicast membership transfer based on MLD/IGMP state records (easy handling)
Defines a common Multicast Mobility Header Option
Defines per group feedback in Multicast Acknowledgement Option
Accounts for MLD/IGMP interoperability
Seamlessly plugs into FMIPv6 and PFMIPv6 protocol semantics and behavior

4. FMIPv6 Predictive Handover
MN PAR NAR
| | |
|------RtSolPr >| |
|<-----PrRtAdv | |
| FBU >| HI >|
| (Multicast MobOpt) | (Multicast MobOpt) |
| |< HAck |
| | (Multicast AckOpt) |
| | Join to
| | Multicast
| | Groups
| <-----FBack---|--FBack------> |
| (Multicast AckOpt) | (Multicast AckOpt) |
disconnect forward |
| packets ===============>|
connect | |
| UNA >|
|<=================================== deliver packets
| |

5. FMIPv6 Reactive Handover
MN PAR NAR
| | |
|------RtSolPr >| |
|<-----PrRtAdv | |
disconnect | |
connect | |
| UNA | >|
| FBU | )|
| (Multicast MobOpt) |< FBU )|
Join to | |
Multicast | |
Groups | |
| | HI >|
| | (Multicast MobOpt) |
| |< HAck |
| | (Multicast AckOpt) |
| |(HI/HAck if necessary)|
| forward |
| packets(including FBack)=====>|
|<=================================== deliver packets
| |

6. PFMIPv6 Predictive Handover
PMAG NMAG
MN P-AN N-AN (PAR) (NAR)
| | | | |
| Report | | | |
|---(MN ID,-->| | | |
| New AP ID) | | | |
| | HO Indication | |
| |--(MN ID, New AP ID)-->| |
| | | Optional: |
| | | MLD Query |
| | | |------HI---->|
| | | |(Multicast MobOpt)
| | | |<---HAck-----|
| | | |(Multicast AckOpt)
| | | | Join to
| | | | Multicast
| | | | Groups
| | | |HI/HAck(optional)
| | | |< >|
| | | forward |
| | | packets =======>|
disconnect | | | |
connect | | | |
| MN-AN connection | AN-MAG connection |
|<----establishment----->|<----establishment >|
| | | (substitute for UNA) |
|<========================================== deliver packets

7. PFMIPv6 Reactive Handover
PMAG NMAG
MN P-AN N-AN (PAR) (NAR)
| | | | |
disconnect | | | |
connect | | | |
| MN-AN connection | AN-MAG connection |
|<---establishment---->|<----establishment >|
| | |(substitute for UNA & FBU)|
| | | | MLD Query
| | | | Join to
| | | | Multicast
| | | | Groups
| | | |
| | | |<------HI----|
| | | |(Multicast MobOpt)
| | | |---HAck----->|
| | | |(Multicast AckOpt)
| | | |HI/HAck(optional)
| | | |< >|
| | | forward |
| | | packets =======>|
|<======================================== deliver packets

8. Summary & Outcome Core protocols defined Operational details to follow
Initial reviews arrived:
Please have a look & help to improve the document!
Proposal to WG:
Anticipate this topic as future charter item

9. Questions?