IETF87 (Berlin) ISIS-WG minutes

  Administrativa
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   Hannes Gredler, new chair
    retire Dave Ward as a WG chair, still available as technical advisor

  Document Status:
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    Reclassification of RFC 1142 to Historic / draft-shand-rfc1142-to-historic-02.txt
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    Peter Lothberg: want a pointer to current IS-IS spec in the 1142 rfc
    <Discussion around how an RFC can get obsoleted by an ISO document>
    Adrian Farrel: remove what we do not consider useful, want people to look in the right direction

    Authors asking for WGLC.

  IS-IS Flooding Scope LSPs / draft-ginsberg-isis-fs-lsp-01.txt
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    WG-acceptance call: no objection by people in the room.

    Hannes: no IPR declaration being made, asking authors:
      is there any IPR claim you're aware of ?
    Stefano: We did not file patent(s).

  IS-IS Support for Unidirectional Links / draft-ginsberg-isis-udl-01.txt
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    Haifeng Zhang: how do you do Graceful Restart ?
    Les: we do not yet have an extension for Graceful Restart, but we would look into it.

    Authors asking for draft becoming a WG-item

  Simplified Extension of interface Space for IS-IS / draft-lz-isis-relax-interfaces-limit-00
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   Les: extensive back and forth on the list, no need to repeat this:
        is there a need to solve this problem ?
        have documented on the list why all use can be mitigated.
   Haifeng: my concerns did not get addressed on the list
   Chris: your messages do not get do the list, we just saw your responses in the replies.
   Haifeng: all my mails did bounce;
   Chris: will sort it after meeting, with the list admin

  ISIS Protocol Extension For Building Distribution Trees / draft-yong-isis-ext-4-distribution-tree-00.txt
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  - 4 people having read the draft;
  - draft has been posted just before deadline (15th july) so perhaps not many have read it.

  Aleeza: please coordinate with PIM-WG such that nothing got missed; work with them on their mailing-list
  Lucy Yong: focus is IP network, no MPLS required, as this is not used in data center environments,
     and its just a small extension.
  Adam: small extension ? - thats relative: - is this M-OSPF ?
  Lucy Yong: no, this is not SSM it is RP based (=ASM)
  Adam: all mcast deployments so far are SSM - why is there need for ASM ?
        is there opportunity for adding SSM support ?
  Lucy Yong: potentially.
  Anoop Ghanwani: what are the multi-level implications ?
  Lucy Yong: currently its single-area, next version will contain multi-level operation. 
  Adam: thinks that traffic will loop