Crankback Signaling Extensions for MPLS Signaling draftiwatamplscrankback07'txt

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Crankback Signaling Extensions for MPLS
Signalingdraft-iwata-mpls-crankback-07.txt

• Adrian Farrel (editor) adrian_at_olddog.co.uk
• Arun Satyanarayana aruns_at_movaz.com
• Atsushi Iwata a-iwata_at_ah.jp.nec.com
• Norihito Fujita n-fujita_at_bk.jp.nec.com
• Gerald R. Ash gash_at_att.com
• Simon Marshall-Unitt smu_at_dataconnection.com

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Status

• Crankback is now a charter item
• Requirement identified in ASON
• Rev 07
• Tightening of text
• Fix typos
• Address issue of using up all remaining
  SESSION_ATTRIBUTE flags
• Move to use new LSP_ATTRIBUTES object

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Remaining Questions

• Are there too many TLVs?
• We believe that each one has a use
• Use is dependent on switching type etc.
• Not a requirement to actively support them all
• Do we need to add text to explain the use of each
  TLV?
• Should this draft define IF_ID TLVs for
  unnumbered bundles?
• It does at the moment
• In Vienna I asked
• Do we need to handle unnumbered bundles at all?
• Should the TLVs be defined in a separate draft?
• No-one seemed to care.
• Fold into ASON signaling solutions or keep
  separate
• My opinion is that this is a distinct piece of
  work that will also be used for PSC

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Next Actions

• Time to become under WG draft
• Would like WG to review and indicate their
  support or comments