Slides presented at ROLL WG at IETF 86

1. 6TSCH
ORLANDO 86th IETF
IETF 86 – ROLL WG – March 2013

2. B
Status:
D A
• MAC-only amendment to IEEE802.15.4-2011
• Published April 2012
• Ideas similar to ISA100.11a and WirelessHART C
• Enables deterministic communication
10s to 1000s
TSCH:
C->A
• Time Synchronization
channelOffset
Typically 16
–low-power consumption D->C
• Channel Hopping
–reliability D->B
Schedule: B->A
• clear trade-off between bandwidth,
redundancy, latency and power consumption. slotOffset
• How to build the schedule is out of scope.

3. • 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

4. +-----+-----+-----+-----+-----+--------+
|PANA | RPL |RSVP | PCE | IP |
| | |/NSIS| /CNM|/ FORWARDING |
+-----+-----+-----+-----+--------+-----+-------+
| 6LoWPAN | 6LoWPAN ND |
| HC +-------------+
| |
+----------------------------------------------+
| 6TUS |
+----------------------------------------------+
| 802.15.4e TSCH |
+----------------------------------------------+

5. ---+------------------------
| 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

6. • 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

7. • 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