1588 over MPLS Update draftietftictoc1588 over MPLS02 IETF

Requirements • Transport 1588 messages over MPLS network • Support Master, Slave, Boundary Clock

Master Clock at LER Master Clock PTP-LSP LER LSR 1 (A) (B) LSP Label

Slave Clock at LER Slave Clock PTP-LSP LER LSR 1 LSR 2 LSR 3

Boundary Clock Slave Master Clock Boundary Clock at LER PTP-LSP LER LSR 1 LSR

Transparent Clock at LER Measure Transit Delay Update Correction Field PTP-LSP LER LSR 1

Transparent Clock (TC) at LSR Measure Transit Delay Update Correction Field PTP-LSP LER LSR

Backward Compatibility Transparent Clock Ingress LER Must be 1588 -Capable PTP-LSP LER LSR 1

Current Solution draft-02 • Use standard Encapsulation – IP/MPLS or PW • Use Dedicated

Proposed Enhancements to draft-03 • Draft-03 to only describe data plane behavior • Separate

Proposed Enhancements to draft-03 • Signal the following in OSPF, ISIS – 1588 capability

Status • Draf-00 published Jan 2011 • Draft-02 published Oct 2012 • Draft-03 was

Next Step • Require review and comments from: – TICTOC WG – MPLS WG

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1588 over MPLS Update draft-ietf-tictoc-1588 over. MPLS-02 IETF 84 (Vancouver), July 2012 Shahram Davari

Requirements • Transport 1588 messages over MPLS network • Support Master, Slave, Boundary Clock and Transparent Clock at LER • Support Transparent clock at LSR • Backward compatible with non-1588 -Capable LSRs 2

Master Clock at LER Master Clock PTP-LSP LER LSR 1 (A) (B) LSP Label IP header PW Label UDP header CW PTP Message LSR 2 LSR 3 Ethernet Header PTP Message 3

Slave Clock at LER Slave Clock PTP-LSP LER LSR 1 LSR 2 LSR 3 (A) (B) LSP Label IP header PW Label UDP header CW PTP Message Ethernet Header PTP Message 4

Boundary Clock Slave Master Clock Boundary Clock at LER PTP-LSP LER LSR 1 LSR 2 LSR 3 (A) (B) (A) IP header Ethernet Header LSP Label PTP Message IP header PW Label UDP header CW UDP header PTP Message (B) Ethernet Header PTP Message 5

Transparent Clock at LER Measure Transit Delay Update Correction Field PTP-LSP LER LSR 1 LSR 2 LSR 3 (A) (B) (A) IP header Ethernet Header LSP Label PTP Message IP header PW Label UDP header CW UDP header PTP Message (B) Ethernet Header PTP Message 6

Transparent Clock (TC) at LSR Measure Transit Delay Update Correction Field PTP-LSP LER LSR 1 (A) (B) LSR 2 LSR 3 (A) (B) LSP Label IP header PW Label UDP header CW PTP Message Ethernet Header PTP Message 7

Backward Compatibility Transparent Clock Ingress LER Must be 1588 -Capable PTP-LSP LER LSR 1 1588 -Capable LER 1588 -Capable LSR 2 Non-1588 -Capable LSR 3 1588 -Capable LSR 8

Current Solution draft-02 • Use standard Encapsulation – IP/MPLS or PW • Use Dedicated LSPs/PWs to carry 1588 – To detect 1588 messages without DPI • PTP LSP/PW is signaled – RSVP-TE extension – LDP, BGP PW signaling extension (FFS) • Routers advertise their 1588 -capability – OSPF, IS-IS extension 9

Proposed Enhancements to draft-03 • Draft-03 to only describe data plane behavior • Separate drafts needed for each of the Routing and Control Plane protocol enhancements • Make the solution more generic solution – Support PTP, NTP, Special Shim, etc. • Support Time-stamping and Correction Field update 10

Proposed Enhancements to draft-03 • Signal the following in OSPF, ISIS – 1588 capability per-port • Signal the following via LDP, BGP, RSVP-TE – Offset to the Timing message – Timing message type (PTP, NTP, Special Timing Shim, etc) – Action Type (TS or CF update) 11

Status • Draf-00 published Jan 2011 • Draft-02 published Oct 2012 • Draft-03 was written but not officially released – Plan is to release draft-03 after Vancouver meeting based on feedback from affected WGs 12

Next Step • Require review and comments from: – TICTOC WG – MPLS WG – PWE 3 WG – OSPF WG – ISIS WG • Publish draft-03 13