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Hybrid-MAC Model for CAPWAP

Hybrid-MAC Model for CAPWAP. draft-ietf-opsawg-capwap-hybridmac-00 Presenting: Hui Deng: denghui02@gmail.com. Background. Presented during last IETF 86 TH meeting, get support from audience. WG LC after IETF meeting, adopted as WG document.

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Hybrid-MAC Model for CAPWAP

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  1. Hybrid-MAC Model for CAPWAP draft-ietf-opsawg-capwap-hybridmac-00 Presenting: Hui Deng: denghui02@gmail.com

  2. Background • Presented during last IETF 86TH meeting, get support from audience. • WG LC after IETF meeting, adopted as WG document. • Thanks kind review and comments from Dorothy Stanley, updated draft accordingly • Review invitation to Behcet Sarikaya with the result of support

  3. Comments from Dorothy Stanley • Normative references should include RFC5416 (802.11 binding protocol) and the material in Figures 1 and 2 should refer to RFC5416. • Agreed, have been changed in the latest version

  4. Comments from Dorothy Stanley • No changes to the CAPWAP RFCs are required. • Yes

  5. Comments from Rajesh Pazhyannur • It appears that you are proposing a new MAC mode which is very similar to Split MAC mode  except that it requires Scheduling to *only* at the WTP (instead of allowing it additionally at AC) Encryption to *only* at the WTP (instead of allowing it additionally at AC)   • If so, does this require defining a new MAC mode in addition to existing Split MAC and Local MAC • Will write a separate draft about the definition this new mode or change from informational to standard track.

  6. Comments from Rajesh Pazhyannur •  The Hybrid MAC mode seems to require fragmentation to be done only at the AC. This choice is a little unclear. • Wouldn’t the upstream traffic continue to be fragmented by the WTP while downstream traffic be fragmented at the AC. • Other comments

  7. Comments from Rajesh Pazhyannur • Are you considering variants of the Split MAC mode where the MAC is split (for example association responses come from the AC)  while the traffic is locally bridged. • For example this appears to be precluded by text in 5416: • In a Split MAC Architecture, the Distribution and Integrationservices reside on the AC, and therefore all user data is tunneled between the WTP and the AC.  As noted above, all real-time IEEE802.11 services, including the Beacon and Probe Response frames, are handled on the WTP. • Ok, Distribution and Integration services will change from AC to WTP.

  8. Change from information to standard track by including a normative work, define a digital 2 for hybrid mac? Thank You Contact Us at Name: Hui Deng Company: China Mobile Email ID:denghui@chinamobile.com

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