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IETF 83 Composite Link Update

IETF 83 Composite Link Update. co-author/presenter: Andy Malis co-authors: Dave McDysan Eric Osborne Ning So Curtis Villamizar Lucy Yong. Three Composite Link Drafts. Composite Link Requirements WG document Composite Link Framework

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IETF 83 Composite Link Update

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  1. IETF 83 Composite Link Update co-author/presenter: Andy Malis co-authors: Dave McDysan Eric Osborne Ning So Curtis Villamizar Lucy Yong

  2. Three Composite Link Drafts • Composite Link Requirements • WG document • Composite Link Framework • Requesting adoption as WG document (milestoned in the WG charter) • Composite Link Use Cases • Requesting adoption as WG document (not specifically milestoned in the WG charter)

  3. Composite Link Requirements 2012-01-30 draft-ietf-rtgwg-cl-requirement-05 • Changes since 03 and 04 versions: • Appendix A and B moved to CL Use Cases (05) • Management section added (04 version) • FR#21 added in 04 version • FR#21 split into two in 05 version • FR#21 = ability to bind an LSP to a particular component link • FR#22 = ability to bind co-routed bi-directional LSP to same component in both directions • Removed informational sentence in DR#1 • Removed references specific to deleted appendices

  4. Composite Link Framework 2012-03-07 draft-so-yong-rtgwg-cl-framework-05 • Substantially changed since 04 version with a new approach • Composite Link Key Characteristics • Architecture Tradeoffs • New Challenges • Existing Mechanisms • Mechanisms Proposed in Other Documents • Required Protocol Extensions and Mechanisms • Includes Framework Requirement Coverage by Protocol • Requested as convenience to implementers • Requesting adoption as a WG document • Milestoned in the WG charter • Authors feel this is a solid WG starting point

  5. Composite Link Use Cases 2012-02-22 draft-symmvo-rtgwg-cl-use-cases-00 • Provides a set of use cases and design considerations for composite links • Some content moved from formerly last called CL Requirements •  Existing Network Operator Practices and Protocol Usage •  Existing Multipath Standards and Techniques • Some content moved from CL Framework 04 version • Composite Link Foundation Use Cases • Some new content • Delay Sensitive Applications •  Large Volume of IP and LDP Traffic •  Composite Link and Packet Ordering •  Appendix C: Characteristics of Transport in Core Networks • Requesting adoption as a WG document • Not specifically milestoned in the WG charter • General WG consensus to create separate Use Cases document

  6. Proposed Next Steps • Composite Link Requirements • Option #1: omit references to Use Cases and advance separately • Option #2: last call again but advance CL documents together • Authors prefer option #2 – Advancing together could identify a need to clarify/augment requirements based upon discussion of framework and use cases. • Composite Link Framework • Requesting adoption as a WG document • Milestoned in the WG charter • Composite Link Use Cases • Requesting adoption as a WG document • May need a new charter milestone (optional?) • Authors feel that all three documents are solid

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