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Seamless Handover for Multiple-Access Mobile Node in PMIPv6. draft-cui-netext-pmipv6-shpmipv6-00. Yong cui, Xin Xu , WD. Wang , XM. Li, YZ. Huo , W. Luo. Atlanta, NetExt WG, 2012-11-5. Motivation. RFC 5949 has proposed two modes of fast handover scheme, but both of them have a limit

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Seamless Handover for Multiple-Access Mobile Node in PMIPv6

draft-cui-netext-pmipv6-shpmipv6-00

Yong cui, XinXu, WD. Wang, XM. Li, YZ. Huo, W. Luo

Atlanta, NetExt WG, 2012-11-5

motivation
Motivation
  • RFC 5949 has proposed two modes of fast handover scheme, but both of them have a limit
    • Just use one interface to handle all packets, even when the interface is under handover
    • The size of packet buffer may be the bottleneck, and the storage-and-forward model may bring a transmission delay
  • It’s possible to use the multi-access features of the MN to solve the problem.
multi access mn handover scenario
Multi-access MN Handover scenario

LMA

router

PMAG

SMAG

NMAG

IF1

IF2

IF2

IF1

MN

MN

solutions
Solutions
  • Basic Idea
    • Use the available interface of the MN to handle the packet that transport on the interface under handover
  • Solutions
    • Build a bi-directional tunnel between MAGs that the MN is attaching to
    • When PMAG finds that the interface is under handover, it forwards packet to the SMAG
    • When LMAfinds that the interface has leaved from PMAG afterward , it change its encapsulating destination to the SMAG
handover signaling
Handover signaling

New interface registration

MAGs intereact

Handovering:

MAG forward packets

Handovering:

LMA forward packets

message formats
Message formats
  • Streamless Handover Initiate (SHI)

Notice: this message Must include MN-ID option

message formats1
Message formats
  • Streamless Handover Acknowledge (SHAck)
next step
Next step
  • Any questions/comments?
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