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Enhanced LSP Attribute Encoding for Efficient ERO Management

Draft proposing an improved LSP attribute encoding method for better ERO management efficiency in CCAMP. Updates from previous versions based on IETF feedback. Discusses new encoding methods and next steps for adoption and refinement.

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Enhanced LSP Attribute Encoding for Efficient ERO Management

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  1. Expressing LSP attribute in ERO CCAMP WG, IETF 85, draft-margaria-ccamp-lsp-attribute-ero-02 Cyril Margaria Nokia Siemens Networks Dirk Schroetter iX GmbH Giovanni Martinelli Cisco Steve Balls; Ben Wright Metaswitch

  2. Updates since -01 Followed WG feedback from IETF84: “pointers” solution less than welcomed Rejected solutions: ERO subobject (not enough space to handle a LSP ATTRIBUTE TLV) ERO subobject containing a pointer to another object (processing) Use SERO-like solution

  3. New encoding • Use SERO Logic, with “bigger” TLVs : • Pro : • size is aligned • Processing rules similar to SERO LSP_ ATTRIBUTE ERO

  4. Encoding TLVs Hop identifier: contains 1 ERO subobject (use ERO definitions) Hop LSP Attribute : use LSP attribute definitions

  5. Next steps • Encoding : questions? • WG adoption? • LSP Attribute or HOP Attribute? • Scope the Attribute to an Hop only or the LSP? • widening the scope of this draft?

  6. Questions?

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