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CC, CV and RDI for MPLS-TP draft-ietf-mpls-tp-cc-cv-rdi.03

CC, CV and RDI for MPLS-TP draft-ietf-mpls-tp-cc-cv-rdi.03. Last call comments. Situation. Version 03 went through last call ending Feb 28 th Editors have reviewed some 90 comments and proposed resolution for each A few more have trickled in which we’ve not yet discused resolution of…

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CC, CV and RDI for MPLS-TP draft-ietf-mpls-tp-cc-cv-rdi.03

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  1. CC, CV and RDI for MPLS-TPdraft-ietf-mpls-tp-cc-cv-rdi.03 Last call comments

  2. Situation • Version 03 went through last call ending Feb 28th • Editors have reviewed some 90 comments and proposed resolution for each • A few more have trickled in which we’ve not yet discused resolution of… • The following is where we are • Plan is to edit to proposed resolution and wrap the document up

  3. Current State • This document an enhancement to RFC 5884/5885 • But it still requires two new code points as it will not be perfectly backwards compatible • RFC 5885 defines basic CC behavior • What is new beyond RFC 5885: • Fast start • Definition of source MEP ID TLV • Defect entry/exit criteria for Mis-Connectivity • Addition of interleaved CV operation • Addition of AIS/LDI as state machine input • Addition of GAL/G-ACh as encapsulation option • Clarifications on MinRxInterval = 0 behavior

  4. Discussion Items • Simplify operation to always run interleaved CC/CV • Simplified configuration vs. three distinct modes of operation • All CC, All CV, interleaved CV • More robust operation  addresses some LC comments • Implementations MAY implement P/F discipline • This requires a further clarification to base spec for interoperability • RFC 5880 says nothing If you issue a Poll and do not get a Final response • Proposal is if no Final reply received in a specified period, abandon the poll • Revert to using Admin Down to change session parameters • Consequence is that not all implementations are not obligated to implement P/F discipline

  5. Summary • Informative configuration appendix to be added • Discussions around CC/CV, Poll/Final to be resolved • We are awaiting PWE closure on use of GAL for PWs • Pretty much all of the rest are either editorial or clarifications which make for a better document…. Thanks!

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