RSVP-TE extensions for MPLS-TP OAM Configuration draft-bellagamba-ccamp-rsvp-te-mpls-tp-oam-ext-03...
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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