NETLMM%20protocol%20proposal%20draft-akiyoshi-netlmm-protocol-00.txt

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NETLMM protocol proposaldraft-akiyoshi-netlmm-pro
tocol-00.txt

• Ippei Akiyoshi
• Marco Liebsch
• NEC
• November 7, 2005

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Motivation

• Diversification of global mobility protocols
• Different global mobility protocols will be used
  in a mobile network such as MIP, HIP and MOBIKE.
• Hierarchical mobility management enables better
  scalability
• Reducing round trip time of a registration for
  local movement
• Necessity for localized mobility protocol
• Common localized IP mobility protocol is
  necessary.

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Design Concept

• Make a local network form a virtual router
• Supporting multiple mobility protocols
• NETLMM operation must be independent of a
  particular access technology
• Support of various access technologies
• Use NDP or link-layer trigger for NETLMM
  support
• Minimum packet overhead in a wireless link
• Efficient use of wireless resources

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Overview of proposed NETLMM protocol

• NETLMM protocol is defined between
• EMAP A mobility anchor point in a local
  network
• AR A router which registers MNs location with
  EMAP
• Each AR advertises the prefix of EMAPs subnet.
• gt Inter-AR handover is transparent to global
  mobility protocol.
• Packets are delivered through a tunnel between
  EMAP and AR.
• MN Identifier is introduced for DAD in the EMAPs
  subnet.

(a)
(b)
(c)
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How to operate Attachment
MN
AR1
EMAP
CN
Power ON
Attach (MN-IP)
Create cache
LR Request (MN-ID, MN-IP, AR1)
Register MNs location with EMAP create a
cache
DAD check
Create cache
LR Ack
DAD succeed
Data Traffic
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How to operate Handover
MN
New AR
Previous AR
CN
EMAP
Data Traffic
Moving from NAR to PAR
Attach (MN-IP)
Create cache
LR Request (MN-ID, MN-IP, AR2)
Update MNs location create a new cache
Update cache
LR Ack
Data Traffic
LD Request (MN-ID, MN-IP)
Delete MNs cache on the previous AR
Delete cache
LD Ack
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Conclusion

• Our proposed NETLMM protocol realizes scalable
  mobility solutions supporting multiple global
  mobility protocols.
• Multiple EMAP configuration and route
  optimization option should also be considered for
  the next step.
• See Appendix of the I-D.