RSVP-TE extensions for MPLS-TP OAM Configuration

draft-bellagamba-ccamp-rsvp-te-mpls-tp-oam-ext-03

Elisa Bellagamba Ericsson

Loa Andersson Ericsson

Pontus Sköldström Acreo

November 2009 IETF 76, Hiroshima

draft-ietf-ccamp-oam-configuration-fwk

1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

OAM Function

0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0

1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1

Continuity Check (BFD for CC)

Performance Monitoring/Loss

Performance Monitoring/Delay

Connectivity Verification (BFD for CC&CV)

To be Defined

OAM Function field

In case of MPLS-TP OAM:

• OAM Type = 2

• BFD is the Choosen tools for MPLS-TP CC&CV in MPLS-TP

November 2009 IETF 76, Hiroshima

BFD for CC: TLV Definition

Path/Resv message

LSP Attributes

OAM Configuration TLV

BFD CC Configuration TLV

November 2009 IETF 76, Hiroshima

• Unique MEP-ID of source of the BFD packet provides a global context for the BFD session so if packet is mis-delivered, lost context can not be confused

• Based on draft-asm-mpls-tp-bfd-cc-cv

• The new tool is obtained introducing Unique MEP-ID, between the ACH (Associated Channel Header) and the current BFD

• The benefit of this solution is to maintain the base behavior and protocol version of BFD

Unique MEP-ID of source of BFD packet

BFD Control Packet

…from draft-swallow-mpls-tp-identifiers

Unique MEP-ID

ME ID

Node ID

Logical Interface Handle

BFD for CC&CV in G-ACh

November 2009 IETF 76, Hiroshima

BFD for CC&CV: TLV Definition

Path/Resv message

LSP Attributes

OAM Configuration TLV

BFD CC&CV Configuration TLV

November 2009 IETF 76, Hiroshima

BFD CC&CV OAM Configuration TLVBFD CC&CV OAM Configuration TLV

LSP (RSVP-TE)LSP (RSVP-TE)

PE PEP PSection Section Section

BFD session

draft-bellagamba-ccamp-rsvp-te-mpls-tp-oam-ext

Unique MEP-ID of source Unique MEP-ID of source

BFD control packet encapsulated in the ACH

Unique MEP-ID of source

BFD control pkt

BFD control packet encapsulated in the ACH

Unique MEP-ID of source

BFD control pkt

Example of GMLS setup of BFD for CC&CV

November 2009 IETF 76, Hiroshima

Next Steps

• Work in collaboration with the authors of:– draft-ietf-ccamp-oam-configuration-fwkdraft-ietf-ccamp-oam-configuration-fwk– draft-ietf-ccamp-rsvp-te-eth-oam-extdraft-ietf-ccamp-rsvp-te-eth-oam-ext– draft-kern-ccamp-rsvp-te-sdh-otn-oam-ext-01draft-kern-ccamp-rsvp-te-sdh-otn-oam-ext-01

• Integrate the remaining MPLS-TP OAM tools

• Adopt it as CCAMP WG document