Topology/Protection Comment Resolution Summary

1
Topology/Protection CommentResolution Summary

• Jason Fan, Section Editor
• Jim Kao, Technical Editor

2
Protection Clause 11

• Section 11
• Section Editor Jason Fan
• Technical Editor Jim Kao
• 59 comments
• 36 technical
• 23 editorial
• Adhoc group resolution
• 16 accepted
• 6 accepted/clarified
• 18 accepted/modified
• 7 accepted/duplicate
• 6 rejected/duplicate
• 3 rejected
• 3 withdrawn
• No objections

3
Protection Clause 11Comment Resolution Summary

• Editorial
• 89, 101, 454, 594-599, 601-606, 608-610, 613-616,
  901, 903 (T)
• Expand steering overview
• Move common steering and wrapping requirements to
  common section
• Merge redundant sections on protection hierarchy
• Remove sections carried over from d0.1 for
  reviewer convenience
• All 6 rejected-duplicates in this block
• Formatting and Overview
• 310-313, 453, 735, 900
• Redraw figures and reformat state diagrams
• Provide overview that illustrates how protection
  works in a broader range of scenarios

• State Diagram Related
• 600, 793
• Include revertive and non-revertive modes for
  wrapping
• 32 (rejected)
• Steering and wrapping state diagrams cannot be
  the same
• 908 (rejected)
• Need for wrapping to send out SD messages before
  Holdoff at source clarified
• Interaction with MAC Ref Model
• 91, 611
• John Lemon to work with editors to draft section
  putting protection in context with MAC ref model,
  particularly topology

4
Protection Clause 11Comment Resolution Summary

• Options for Ringlet Selection
• 99, 647
• Editorial notes to list potential issues for
  ringlet selection, such as TTL insertion for
  multicast packets and direction selection given
  protection status information
• Protection Messaging Related
• 100, 607, 902
• Clarification to show how steering can utilize
  common protection message format with wrapping
• 169 (rejected)
• Objection to backoff timer to be addressed
  offline between meetings

• Requirements Cleanup and Clarification
• 98, 102-105, 905-907, 909
• A few requirements removed because redundant with
  other clauses
• WTR resolution changed to 1 second from 100 ms,
  default changed to 10 seconds from 1 second
• Sequence number added in protection control
  packets to handle potential out of order receipt
  of protection messages in corner case condition

5
Protection Clause 11Comment Resolution Summary

• Keep-alive Criteria
• 92, 97, 646
• Loss of keep-alives based on failure to receive a
  keep-alive in 16 to 512 consecutive fairness
  packet transmission intervals, with resolution of
  1
• PHY/RS Related
• 93, 612
• Protection editors will meet with PHY/RS editors
  to determine what will be defined in protection
  clause, and what will be defined in PHY/RS
  clauses

• Reversion Mode Definition
• 710
• Presentation to working group with written
  contribution to be prepared for next meeting
  describing proposal for making reversion mode
  configurable per station per CoS