Thank you, Pascal.

> Please let me know if you intend to provide a review soon.

Yes. Here are my additional but minor comments:

---

[Definition of 6P / Section 2.2 and Figure 1]

In the terminology section, 6top is explained as follows:

   6top (6TiSCH Operation Sublayer):  The next highest layer of the IEEE
               Std 802.15.4 TSCH medium access control layer.  It
               implements and terminates 6P, and contains at least one
               SF.

However, 6top doesn't contain SFs in Figure 1. My understanding on 6top is the 
same as Figure 1. In addition, the original text says that 6top "contains at 
least one SF". However, 6TiSCH could work without SF. Then, the explanations of 
6top and 6P in Section 2.2 would be:

   6top (6TiSCH Operation Sublayer):  The next higher layer of the IEEE
               Std 802.15.4 TSCH medium access control layer.  It
               provides the abstraction of an IP link over a TSCH
               MAC, schedules packets over TSCH cells, and expose a management
               interface to schedule TSCH cells.

   6P (6top Protocol):  Allows neighbor nodes to communicate to add/
               delete cells to one another in their TSCH schedule. 6P is 
terminated at
               the 6top layer.

[Terminology / Section 2.2]

Are these terms common? It seems so, but they are not used in the draft nor in 
RFC7554/RFC8180/RFC8480, are they?: 

   blacklist of frequencies:  A set of frequencies which should not be
               used for communication.

   broadcast cell:  A scheduled cell used for broadcast transmission.

Does "broadcast cell" means a cell having the broadcast MAC address in its 
neighbor MAC address field? I'd like to have more text on them or to remove 
them.

["6P protocol"]
"6P protocol" is used three times in the draft, which should be replaced with 
"6P" (or "6top Protocol").

---

That's all :-) 

> Maybe we'll work on them in PAW ML. Did you register?

Yes, I did.

Thanks!
Yatch

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