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Re: [6tisch] 6TiSCH Protocol Stack in draft-ietf-6tisch-architecture-12

"Pascal Thubert (pthubert)" <pthubert@cisco.com> Wed, 29 November 2017 08:32 UTC

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From: "Pascal Thubert (pthubert)" <pthubert@cisco.com>
To: Yasuyuki Tanaka <yatch1.tanaka@toshiba.co.jp>
CC: "6tisch@ietf.org" <6tisch@ietf.org>
Thread-Topic: 6TiSCH Protocol Stack in draft-ietf-6tisch-architecture-12
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Subject: Re: [6tisch] 6TiSCH Protocol Stack in draft-ietf-6tisch-architecture-12
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Hello Yatch:



Great point. You’ll note that 6P runs at the top of the MAC and below 6LoWPAN and IP, so I’d rather not group it as you suggest.



What about the following:



   +-----+-----+

   |    COMI   |

   +-----+-----+-----+------+-------+-----+

   | CoAP/EDHOC/COSE |  6LoWPAN ND  | RPL |

   +-----+-----+-----+------+-------+-----+

   |       UDP       |      ICMPv6        |

   +-----+-----+-----+-----+-------+------+

   |                 IPv6                 |

   +--------------------------------------+----------------------+

   |     6LoWPAN HC   /   6LoRH HC        | Scheduling Functions |

   +--------------------------------------+----------------------+

   |     6top (to be IEEE Std 802.15.12) inc. 6top protocol (6P) |

   +-------------------------------------------------------------+

   |                 IEEE Std 802.15.4 TSCH                      |

   +-------------------------------------------------------------+



?



Pascal

-----Original Message-----
From: Yasuyuki Tanaka [mailto:yatch1.tanaka@toshiba.co.jp]
Sent: mercredi 29 novembre 2017 06:33
To: Pascal Thubert (pthubert) <pthubert@cisco.com>
Cc: 6tisch@ietf.org
Subject: 6TiSCH Protocol Stack in draft-ietf-6tisch-architecture-12



Hello Pascal,



I have one minor comment on Figure 1 of the draft;



   https://tools.ietf.org/html/draft-ietf-6tisch-architecture-12#section-3.1



My suggestion is to put "6LoWPAN HC / 6LoRH" directly on "IEEE Std

802.15.4 TSCH" and to add one box labeled with "Scheduling Functions".

It would look like...



(suggested version)



       +-----+-----+

       |    COMI   |

       +-----+-----+-----+------+-------+-----+

       | CoAP/EDHOC/COSE |  6LoWPAN ND  | RPL |

       +-----+-----+-----+------+-------+-----+

       |       UDP       |        ICMPv6      |

       +-----+-----+-----+-----+-------+------+------------------------+

       |                 IPv6                 |  Scheduling Functions  |

       +--------------------------------------+------------------------+

       |        6LoWPAN HC   /   6LoRH        |      6top protocol     |

       +--------------------------------------+------------------------+

       |                     IEEE Std 802.15.4 TSCH                    |

       +---------------------------------------------------------------+



(current version)



       +-----+-----+

       |    COMI   |

       +-----+-----+-----+------+-------+-----+

       | CoAP/EDHOC/COSE |  6LoWPAN ND  | RPL |

       +-----+-----+-----+------+-------+-----+

       |       UDP       |          ICMP      |

       +-----+-----+-----+-----+-------+------+----+

       |                 IPv6                      |

       +-------------------------------------------+

      |             6LoWPAN HC   /   6LoRH        |

       +-------------------------------------------+

       |                   6top                    |

       +-------------------------------------------+

       |             IEEE Std 802.15.4 TSCH        |

       +-------------------------------------------+



"ICMP" is replaced with "ICMPv6" as well.



Thanks!



Best,

Yatch

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