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Minutes, 05 October 2015, ad-hoc meeting OTF
Present
- Thomas Watteyne
- Xavi Vilajosana
- Diego Dujovne
action items
- Thomas to coordinate with WG (deadline: 6 Oct)
- Xavi to coordinate with Qin and provides first draft (by Thursday)
- Diego to coordinate with OTF authors about reorg
minutes
- we need draft by 19 Oct
- vision
- We have 6top Sublayer draft which is generic and defines the tools we have to operate
- We have OTF OF (From now on OTF0) which defines the specific setup to make things work using the sublayer tools.
- tentative organization draft
- Overview . - The 6top Sublayer . role: . [remove?] The current document does not define how flows with multiple priorities are supported. Future extensions to this document might add support for multiple priorities. . maintaining (basic) cell usage statistics . monitoring and moving (soft) cells . there is Objective Function (OF) that takes care of: . maintains some statictics as needed . maintaining the bandwidth, even when the PDR of the link to a neighbor changes. This might include detecting cells which suffer from collision, and relocating them to a dfferent slotoffset/channeloffset location in the schedule. . increasing/decreasing the bandwidth according to the application needs. . protocol to add/remove cells to a neighbor. The OF uses this mechanism. . a mechanisms by which a neighbor node discovers the OF currently in use by the 6top sublayer (OCP ID or something like that -- see RPL DIO OCP RFC6550). - Hard/Soft Cells . IEEE802.15.4e defines some flags . 6top adds additional qualifiers of a cell (NOT strictly speaking flags) . soft cells: 6top Monitoring Process active on the cell, the 6top OF is allowed to relocate it . hard cells: 6top Monitoring Process NOT active, r/o mode. Exact useage not defined, left open for future use. hard cells can only be read - 6top-to-6top Communication Protocol . based on IEs . TODO: coordinate with IETF to allocate IE numbering space . discovery - Example Scenarios - IANA
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