65 lines
1.9 KiB
Markdown
65 lines
1.9 KiB
Markdown
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# 6TiSCH Operation Sublayer (6top)
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## **Overview**
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6TiSCH Operation Sublayer (6top), a logical link layer in the 6TiSCH architecture, provides the abstraction of an IP link over a TSCH MAC layer (IEEE 802.15.4e). The functionality of 6top is to facilitate the dynamic cell negotiation with one-hop neighbors.
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This is a Contiki implementation of 6top, which defines how to handle a 2-step 6top transaction on a basic RPL+TSCH network.
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Developed by:
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- Shalu R, CDAC, shalur@cdac.in, github user: [shalurajendran](https://github.com/shalurajendran)
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- Lijo Thomas, CDAC, lijo@cdac.in
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## **Features**
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This implementation includes:
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- 6top protocol(6P)
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- 6P Add
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- 6P Delete
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- 2-step 6top Transaction
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The code has been tested on Zolertia Z1 (z1, tested in cooja only) platform.
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## **Code structure**
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The 6top frame format is included in:
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- core/net/mac/frame802154-ie.[ch]: Modified to include Sixtop Information Elements
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6top is implemented in:
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- core/net/mac/tsch/sixtop/sixtop.[ch]: 6top interface and 6top protocol(6P addition and deletion), handling of 6P Requests and Response
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TSCH file modified:
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- core/net/mac/tsch/tsch.[ch]: Modified to include Sixtop module
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## **Using 6top**
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A simple 6top+TSCH+RPL example is included under examples/ipv6/rpl-tsch-sixtop. Currently this application triggers the 6P transactions, later the 6top Scheduling Function (SF) may be implemented for the purpose.
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To use 6top, make sure your platform supports TSCH and have sufficient memory.
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To add 6top to your application, first include the Sixtop module in your Makefile with:
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MODULES += core/net/mac/tsch/sixtop
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Also enable the sixtop functionalities in your project-conf.h file with
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#undef TSCH_CONF_WITH_SIXTOP
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#define TSCH_CONF_WITH_SIXTOP 1
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## **Additional documentation**
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1. [IETF 6TiSCH Working Group](https://datatracker.ietf.org/wg/6tisch)
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2. [6TiSCH 6top Protocol (6P)](https://tools.ietf.org/pdf/draft-ietf-6tisch-6top-protocol-02.pdf)
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