PMIPv6 Route Optimization Protocol draft-qin-mipshop-pmipro-00.txt

1
PMIPv6 Route Optimization Protocol
draft-qin-mipshop-pmipro-00.txt

• Alice Qin
• Andy Huang
• Wenson Wu
• Behcet Sarikaya

2
Problem Statement

• PMIPv6 uses indirect routing via HA
• Type 1 CNs
• MIPv6 corresponding node functionality enabled,
  not behind PMIPv6 MAG
• Type 2 CNs
• MNs behind PMIPv6 MAG
• Our solution for Type 1 CNs is adopted from
  enhanced RO draft (draft-ietf-mipshop-cga-cba)

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E-RO

• Initial home address test
• Early BU/BA exchange (care-of test)
• Complete BU/BA
• CGA for MNs HoA based on RFC 3972
• CBA adopted with no change

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PMIPv6 RO (1/2)

• Initial home address test -gt Proxy Home Test
• Early BU/BA exchange (care-of test) -gt Early
  Proxy BU/BA
• Added handover keygen token

Home Agent (HA)
MAG
CN
Proxy Home address Test Init (Proxy HoTI)
Proxy HoTI
Proxy Home address Test (Proxy HoT)
Proxy HoT
Early Proxy Binding Update (care-of test)
Proxy Binding Acknowledge
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PMIPv6 RO (2/2)
MN
CN
MAG2
MAG1
Handover context
(Handover keygen token)
Handoff
Early Proxy Binding Update
Proxy Binding Acknowledge
Complete Proxy Binding Update
Proxy Binding Acknowledge
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RO with CNs behind MAG(1/2)

• MAG1 of MN needs to know CoA of CN which is
  provided by HA of CN
• Proxy BU exchange between MAGs

MAG2 (CN)
Home Agent (CN)
MAG1 (MN)
Binding cache Request/Ack
(CoA list of CNs)
Proxy Binding Update
Proxy Binding Acknowledgement
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RO with CN behind MAG(2/2)

• RO in Handover

MN
MAG2 (MN)
MAG3 (CN)
MAG1
Context Transfer Request
Context Transfer Data
(CoA list of CNs)
Proxy Binding Update
Proxy Binding Acknowledgement
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Next Steps

• Get more comments and revise accordingly
• Issue a revised draft by next IETF
• Listen to WG on the next steps