MPLS-TP OAM Analysis

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Published on November 19, 2009

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MPLS-TP OAM Analysisdraft-ietf-mpls-tp-oam-analysis-00.txt : MPLS-TP OAM Analysisdraft-ietf-mpls-tp-oam-analysis-00.txt Nurit Sprecher / Nokia Siemens Networks Huub van Helvoort / Huawei Yaacov Weingarten / Nokia Siemens Networks Elisa Bellagamba / Ericsson IETF 76, Hiroshima Purpose of the Document : Purpose of the Document Analyze whether existing IETF/ITU-T OAM tools can fulfill the functional requirements Identify which tools may be extended in order to support the functional requirements Identify whether new tools need to be defined to fulfill certain functional requirements Provide input to the decision process Continue to track information, analysis, and decisions about OAM Organization of the Document : Organization of the Document Provide an overview on the existing OAM tools The existing tools are evaluated based on the different OAM requirements, and gaps (if they exist) are identified. Recommendations and guidelines are provided. Report the conclusions of the discussions concerning the MPLS-TP OAM tools and the organization of the OAM documents at IETF75. Add new sections reporting conclusions of further discussions of OAM Guidelines : Guidelines RFC 5654 requires that “the The MPLS-TP design SHOULD as far as reasonably possible reuse existing MPLS standards” and that “mechanisms and capabilities MUST be able to interoperate with existing IETF MPLS [RFC3031] and IETF PWE3 [RFC3985] control and data planes where appropriate” Re-use/extend existing IETF protocols where applicable (fault management) Define new message format for each of the rest of the OAM functions, which are (1) aligned with the ACH and ACH TLV definitions, (2) includes only relevant information, and (3) extensible. Adapt Y.1731 functionality where applicable (mainly for performance monitoring). Findings : Findings LSP-Ping can easily be extended to support some of the functions between MEP-to-MEP and MEP-to-MIP. BFD can be extended to support some of the functions between MEP-to-MEP Some of the OAM functions defined in Y.1731 (especially for performance monitoring) can be adapted. Draft Status : Draft Status Authors updated the document to include a report of the conclusions of the discussions concerning the MPLS-TP OAM tools and the organization of the OAM documents at IETF75. Authors addressed comments received from the design team and from individuals on the mailing list. The document is now an MPLS WG document. Next Steps : Next Steps Authors plan to work further on the text and address comments recently received on the MPLS-TP mailing list. Keep it as a living document, keep revisiting the document as the OAM solutions are developed, and update it as needed. Ultimately, the intention is to progress the document to provide a reference for the issues, considerations and the agreed decisions (informational or historic document). Questions : Questions Thanks : Thanks Backup Slides : Backup Slides Recommendations (1) : Recommendations (1) Recommendations (2) : Recommendations (2) Recommendations (3) : Recommendations (3)

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