1. MPLS-TP - 77th IETF1 MPLS-TP Control Plane Framework draft-abfb-mpls-tp-control-plane- framework-02.txt Contributors: Loa Andersson Lou Berger Luyuan Fang Nabil Bitar : Attila Takacs Martin Vigoureux Elisa Bellagamba

2. MPLS-TP - 77th IETF2 Draft Objectives Provide a context for the MPLS-TP control plane Based on MPLS-TP RFCs and drafts Notably requirements, framework and survivability Based on existing IETF control plane – LSPs and PWs Apply GMPLS/MPLS, PW control planes wherever possible Reviews control plane requirements Derived from other requirements, but stated in the context of control plane All requirements must be satisfied By the LSP control plane alone for Network Layer Adaptation (FW Section 3.4.3) By the combination of PW and LSP control planes for Pseudowire Adaptation (FW Section 3.4.2) Provides a mapping of requirements to existing IETF mechanisms Identifies gaps Does define any protocol extensions Extensions to be covered in other drafts as needed Reminder: TP does not require a control plane Drives which functions are in OAM and which are in Control Plane There is some debate as to which functions belong in each (not covered in this talk)

3. MPLS-TP - 77th IETF3 Changes in Latest Draft Rev General edits Added references for all listed requirements Aligned text with source, as required Some requirements removed Filled in Section 3 – Relationship of PWs and TE LSPs Rewrote Section 4 – TE LSPs Reviews existing GMPLS functions as related to TP Provides mapping of TP CP Requirements to existing mechanisms Identifies areas of anticipated extensions Minor updates to PW and Security sections

4. MPLS-TP - 77th IETF4 Planned Changes Issue current draft as -00 WG draft Poll completed March 16 draft-ietf-ccamp-mpls-tp-control-plane-framework Immediately submit -01 draft Additional author: General edits and consistency fixes Minor requirements alignments Substantial revision to Section 5 – Pseudowires Generally aligned with LSP section: LDP Function and Pseudowires PW Control (LDP) and MPLS-TP Requirements Table Anticipated MPLS-TP Related Extensions Pseudowire OAM and Recovery (Redundancy) Final planned major technical change

5. MPLS-TP - 77th IETF5 Next Steps Immediately Issue as -00 WG document Issue -01 document with discussed changes Issue -02 revision in Mid April To address WG comments Other general edits Update requirements section to align with P2MP split in framework documents  Please review and comment!!!

6. MPLS-TP - 77th IETF6 Details of Major Changes As time permits

7. MPLS-TP - 77th IETF7 draft-abfb…-02 Section 3 Section 3 Added – Relationship of PWs and TE LSPs Follows framework and PWE3 reference models PW control is independent from LSP signaling GMPLS-RSVP for LSPs, LDP for PWs RSVP support for PWs is out of scope Allows for use of PW control plane without LSP control plane and visa-versa Results in four cases (no CP, PW CP, LSP CP, PW+LSP CP) In combination, all requirements must be met by TP control plane By the LSP control plane alone for Network Layer Adaptation (FW Section 3.4.3) By the combination of PW and LSP control planes for Pseudowire Adaptation (FW Section 3.4.2)

8. MPLS-TP - 77th IETF8 draft-abfb…-02 Section 4 Section 4 Rewritten – TE LSPs Reviews existing GMPLS functions as related to TP In-Band and Out-Of-Band Control and Management Addressing Routing TE LSPs and Constraint-Based Path Computation Signaling Unnumbered Links Link Bundling Hierarchical LSPs LSP Recovery Control Plane Reference Points (E-NNI, I-NNI, UNI) OAM, MEP (Hierarchy) Configuration and Control Management Plane Support Provides mapping of TP CP Requirements to existing mechanisms GMPLS Architecture, Signaling (GMPLS-RSVP-TE), Routing (ISIS and OSPF), Recovery, Hierarchy, …

9. MPLS-TP - 77th IETF9 draft-abfb…-02 Section 4 (cont.) Identifies areas of anticipated extensions MPLS to MPLS-TP Interworking Associated Bidirectional LSPs Asymmetric Bandwidth LSPs Recovery for P2MP LSPs Test Traffic Control and other OAM functions CP or OAM? Diffserv Object usage in GMPLS

10. MPLS-TP - 77th IETF10 draft-ietf…-02 Section 5 Section 5 – Pseudowires Aligned the structure of this section more closely with the structure of section 4 Now contains the following subsections: LDP Function and Pseudowires PW Control (LDP) and MPLS-TP Requirements Table Anticipated MPLS-TP Related Extensions Pseudowire OAM and Recovery (Redundancy) There is now a requirements table similar to that in section 4 intended to show what drafts/RFCs address (or will address) Pseudowire related requirements among those listed in section 2 –References PW-LDP, VCCV, GACH, PWE3, Dynamic-PWs … Non PW requirements met by LSP control plane Related changes: Section 2: updated a few requirements to match changes in the documents from which they derived Section 4: updated a few table entries to refer to the new table in section 5 References: added several new references

11. MPLS-TP - 77th IETF11 draft-ietf…-02 Other Changes A review of the requirements in section 2, and comparison with requirements sources allowed for deprecating/removing a few requirements Removed the Network Management Considerations section The section had no content Not clear that this is needed for a framework draft If anyone would care to propose text for the section, it could be re-inserted A number of general editing changes