PMIPv6 Local Routing

draft-krishnan-netext-pmip-lr-02

PMIPv6 Local Routing | Suresh Krishnan | IETF78 | 2010-07-27 | Page 2

Background

› Individual draft produced by the merger of various solution drafts

› Reflects author and working group consensus as of IETF77› Covers 3 LR scenarios A1, A21 and A12› Does not cover LR scenario A22 since there is no defined

PMIPv6 mechanism for inter-LMA communication

PMIPv6 Local Routing | Suresh Krishnan | IETF78 | 2010-07-27 | Page 3

What has changed

› Added clearly defined rules for who initiates LR.› Detailed list of options included for each message used for

establishing LR– For each of the supported scenarios

› Allowed infinite lifetime for bindings– In this case LR can be stopped by sending an LRI with the ‘S’ bit

set.

› New MAG IPv6 address option added to convey IP address of one MAG to another.

› Scenario A22 explicitly excluded– LR will be dropped when one of the supported scenarios turns into

A22

PMIPv6 Local Routing | Suresh Krishnan | IETF78 | 2010-07-27 | Page 4

Way forward

› Request adoption as working group item› Address pending reviews from Marco Liebsch, Paulo

Loureiro and Qin Wu.› Solicit more reviews.

Thank you

Backup slides

PMIPv6 Local Routing | Suresh Krishnan | IETF78 | 2010-07-27 | Page 7

LR initiation rules

–MAG behavior

If (both nodes are attached here) &&

(nodes anchored at different LMAs)

Initiate_LR();– LMA behavior

If (both nodes are anchored here)

Initiate_LR();

PMIPv6 Local Routing | Suresh Krishnan | IETF78 | 2010-07-27 | Page 8

Scenario A11

MN1

MAG1

MN2

LMALRI

LRA

PMIPv6 Local Routing | Suresh Krishnan | IETF78 | 2010-07-27 | Page 9

Scenario A21

MN1

MAG1 MAG2

MN2

LMALR tunnel

LRI

LRA

LRI

LRA

PMIPv6 Local Routing | Suresh Krishnan | IETF78 | 2010-07-27 | Page 10

Scenario A12

MN1

MAG1

MN2

LMALRI

LRI

LRI

LMA

LRALRA