Ietf 83 multimob dmm p roposal summary
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IETF#83 Multimob DMM P roposal Summary. Dapeng Liu China Mobile. Current status of DMM. DMM working group has been formed. The new DMM charter is published. Many proposals has been submitted recently and will be discussed in Thursday DMM session. Solution categories.

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IETF#83 Multimob DMM P roposal Summary

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Ietf 83 multimob dmm p roposal summary

IETF#83MultimobDMM Proposal Summary

Dapeng Liu

China Mobile


Current status of dmm

Current status of DMM

  • DMM working group has been formed.

  • The new DMM charter is published.

  • Many proposals has been submitted recently and will be discussed in Thursday DMM session.


Solution categories

Solution categories

  • Dynamic anchoring based on PMIP.

    • draft-seite-dmm-dma-00 - Distributed Mobility Anchoring

    • draft-korhonen-dmm-prefix-properties-01 - IPv6 Prefix Mobility Management Properties

    • draft-korhonen-dmm-local-prefix-00 - Local Prefix Lifetime Management for Proxy Mobile IPv6

    • draft-liu-dmm-address-selection-01 - Address Selection for DMM

    • draft-liu-dmm-dynamic-anchor-discussion-00 - DMM Dynamic Anchor Discussion

    • draft-liu-dmm-mobility-api-00 - Mobility API Extension for DMM

    • draft-chan-dmm-architecture-00 - A architecture of distributed mobility management using mip and pmip

  • Control/data plane separation based on PMIP.

    • draft-bernardos-dmm-distributed-anchoring-00 - PMIPv6-based distributed anchoring

    • draft-bernardos-dmm-pmip-01 - A PMIPv6-based solution for Distributed Mobility Management

    • draft-jaehwoon-dmm-pmipv6-00 - PMIPv6-based Distributed Mobility Management

    • draft-liu-dmm-pmip-based-approach-02 - PMIP Based DMM Approaches

    • draft-luo-dmm-pmip-based-dmm-approach-01 - PMIP Based DMM Approaches

  • CMIP based DMM proposal.

    • draft-sarikaya-dmm-dmipv6-00 - Distributed Mobile IPv6

    • draft-chan-dmm-architecture-00 - A architecture of distributed mobility management using mip and pmip

  • Routing based DMM proposal.

    • draft-mccann-dmm-flatarch-00 - Authentication and Mobility Management in a Flat Architecture

  • Loc/ID separation based DMM proposal.

    • draft-liebsch-mext-dmm-nat-phl-01 - Per-Host Locators for Distributed Mobility Management


Dynamic anchoring based on pmip

Dynamic anchoring based on PMIP

  • MN was formerly anchored at MAR1, when move to MAR2, for the on-going traffic, will still be tunneled back to MAR1

  • The newly started traffic, go directly through MAR2

  • Problems need to be solved:

    • Address management

    • Address selection

CN1

Session DB

CN2

Flow2

Flow1

MAR1

MAR2

MAR3

MN


Control data plane separation based on pmip

Control/data plane separation based on PMIP

  • Control plane: CMD is the central binding cache database

  • Data plane: traffic is routed through MARs, CMD is not involved

  • PMIP signaling is extended to support this architecture

  • Problems need to be solved:

    • Address management

    • Address selection

CN

CMD

Central Mobility Database

PBU

PBA

PBU

PBA

MAR1

MAR2

MAR3

MN


Cmip based dmm proposals

CMIP based DMM proposals

  • Each AR has HA functionality

  • MN associates multiple ARs, the ongoing session is kept through previous AR

  • Problems need to be solved:

    • Address management

    • Address selection

CN1

CN2

Flow2

Flow1

AR1

HA

AR2

HA

AR3

HA

MN


Routing based dmm proposal

Routing based DMM proposal

router

router

Core layer

DNS

  • Keep IP address unchanged during handover, rely on BGP UPDATE announcing the new route.

  • For initial attachment, AR allocate IP address using DHCP.

  • MN updates its DNS record using the IP address (e.g. prefix1).

  • When handover happens, new AR confirms that the MN has already have an IP address (DNS lookup), then using BGP to announce prefix1 in the routing system.

  • By careful IP address planning, confine the routing update in a domain.

  • Problems:

    • How previous AR revocation the prefix

2. Update DNS

router

Aggregation layer

router

router

AR

Access layer

AR

AR

AR

1. DHCP: prefix1

3. Reverse DNS lookup

MN

MN

4. BGP UPDATE prefix1


Loc id separation based dmm proposal

Loc/ID separation based DMM proposal

CN1

  • Use Loc/ID separation mechanism to solve DMM problem

  • For uplink traffic, Mobility anchor convert MN’s ID to Loc; using NAT instead of encapsulation

  • For downlink traffic, IR convert MN’s ID back to Loc

Data, des.address A:1::

NAT

IR

Data, des.address B:1::

nMA

pMA

MN’s [email protected]:

HNP A:1::

nAR/

nMAG

MN’s [email protected]:

HNP_id A:1::

HNP_loc B:1::

PAR/

PMAG

MN

A:1::1


Compare matrix of dmm solutions

Compare Matrix of DMM solutions

solutions

Criteria

PS: Need to add newly submitted proposals for the next version


Ietf 83 multimob dmm p roposal summary

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