6TSCH

ORLANDO 86th IETF

IETF 86 – ROLL WG – March 2013

Status:• MAC-only amendment to IEEE802.15.4-2011 • Published April 2012• Ideas similar to ISA100.11a and WirelessHART • Enables deterministic communication

TSCH:• Time Synchronization

–low-power consumption• Channel Hopping

–reliability

Schedule:• clear trade-off between bandwidth, redundancy, latency and power consumption.• How to build the schedule is out of scope.

D->B

D

B

C

A

D->C

B->A

C->A

chan

nelO

ffset

slotOffset

Typi

cally

16

10s to 1000s

• IPv6 access and routing over deterministic (Time Synchronized Channel Hopping) MAC

• Mix of centralized and distributed routing• Put together architecture binding existing

standards (RPL, 6LoWPAN, PANA, COMAN, ForCES/OpenFlow, NSIS/RSVP, diffserv) over 802.15.4e TSCH

• Provide missing components and steer work

+-----+-----+-----+-----+-----+--------+ |PANA | RPL |RSVP | PCE | IP | | | |/NSIS| /CNM|/ FORWARDING | +-----+-----+-----+-----+--------+-----+-------+ | 6LoWPAN | 6LoWPAN ND | | HC +-------------+ | | +----------------------------------------------+ | 6TUS | +----------------------------------------------+ | 802.15.4e TSCH | +----------------------------------------------+

---+------------------------ | External Network | +-----+ +-----+ | | Router | | PCE / | | | | Common Net Mgt +-----+ +-----+ | | | Subnet Backbone | +--------------------+------------------+ | | | +-----+ +-----+ +-----+ | | Backbone | | Backbone | | Backbone o | | router | | router | | router +-----+ +-----+ +-----+ o o o o o o o o o o o o o o o o o o o LLN o o o o o o o o o o o o o o o o

• Define scope and problem– Backbone + PCE + TSCH/RPL/6LoWPAN WSN– draft-phinney-roll-rpl-industrial-applicability

• Define goals and delivables– Info: LLN context, Architecture, Terminology– New: 6TUS, Management protocols, track

reservation– Adapt: 6TSCH RPL OF, fragment forwarding– Extern: Backbone Router, PCE, COMAN

• Define dependencies and liaisons– IEEE 802.1TSN, ISA100.20, IoT6

• draft-phinney-roll-rpl-industrial-applicability• draft-palattella-6tsch-terminology • draft-watteyne-6tsch-tsch-lln-context• draft-wang-6tsch-6tus • draft-thubert-6tsch-architecture• List todos