Dear authors of
draft-hou-6lo-plc<https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdatatracker.ietf.org%2Fdoc%2Fdraft-hou-6lo-plc%2F&data=05%7C01%7Ccedric-2.lavenu%40edf.fr%7C4a8bff0487624999efe808da229efb7c%7Ce242425b70fc44dc9ddfc21e304e6c80%7C1%7C0%7C637860363459637619%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=gEP%2B8C5kjsp7WQBPmsvDgXaZ%2BzUBXoW2PwU8nWV6TpM%3D&reserved=0>,
I reviewed your ID and discovered some technical items are not totally in line
with latest G3-PLC / ITU-T G.9903 Specifications.
Let me know should you have any question/comment.
>> The equivalence between Full-function device, an IEEE 802.15.4 term, (as
>> used in G.9903) and coordinator in other standards is wrong; we only of FFD
>> in G3-PLC (PAN device or PAN coord.)
+---------------+----------------+------------------+---------------+
| IEEE 1901.2 | IEEE 1901.1 | ITU-T G.9903 | This document |
+---------------+----------------+------------------+---------------+
| PAN | Central | PAN Coordinator | PAN |
| Coordinator | Coordinator | | Coordinator |
| | | | |
| Coordinator | Proxy | Full-function | Coordinator |
| | Coordinator | device | |
| | | | |
| Device | Station | PAN Device | PLC Device |
+---------------+----------------+------------------+---------------+
Table 1: Terminology Mapping between PLC standards
>> A0ED is not used in G.9903 and IEs are also not supported as the PLC PHY&MAC
>> is based on IEEE 802.15.4-2006.
A PLC node distinguishes between an IPv6 PDU and a non-IPv6 PDU based
on the equivalent of a EtherType in a layer-2 PLC PDU. [RFC7973]
defines a Ethertype of "A0ED" for LoWPAN encapsulation, and this
information can be carried in the IE field in the MAC header of
[IEEE_1901.2] or [ITU-T_G.9903].
>> G.9903 does not use the neighbour discovery address resolution procedure but
>> it is assigned to PAN devices by the PAN Coordinator after successful
>> joining (according to the LoWPAN Bootstrap Protocol, included as Annex E of
>> G.9903).
4.3. Unicast Address Mapping
4.3.2. Unicast Address Mapping for IEEE 1901.2 and ITU-T G.9903
>> Direct PAN device to PAN device communication is also something that is
>> possible with LOADng
AODV-RPL([I-D.ietf-roll-aodv-rpl]) enables direct PLC device to PLC device
communication, without being obliged to transmit frames through the
PANC, which is a requirement often cited for AMI infrastructure.
>> The reference to ITU-T G.9903 is outdated (most recent revision was
>> published in 2017 + and Amendment 1 was introduced in 2021)
[ITU-T_G.9903]
International Telecommunication Union, "Narrowband
orthogonal frequency division multiplexing power line
communication transceivers for G3-PLC networks",
ITU-T G.9903, February 2014,
https://www.itu.int/rec/T-REC-G.9903<https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.itu.int%2Frec%2FT-REC-G.9903&data=05%7C01%7Ccedric-2.lavenu%40edf.fr%7C4a8bff0487624999efe808da229efb7c%7Ce242425b70fc44dc9ddfc21e304e6c80%7C1%7C0%7C637860363459647577%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=2yU1FJxrLj2Zoo2wOrqZfsEdLlZQjT9Yu0shb8oC4PU%3D&reserved=0>.
Kind regards,
Cédric
Expert Research Engineer at EDF R&D
G3-PLC Alliance WS1 Chair
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