Hi, Thanks for the chance to comment.
Firstly, *please* do not use the word "semantic". This is not semantic addressing in any way. It's a topological addressing scheme, and that's a good idea. (Semantic addressing is a bad idea that wastes address bits. From the title, I was expecting to hate this document.) If you like the PASA acronym, try: Path-Aware Static Addressing Path-Aware Systematic Addressing Path-Aware Synthetic Addressing (Or change the acronym to PATA: Path-Aware Topological Addressing.) I realise this affects several drafts, but IMHO "semantic" is just very misleading. Some comments about use cases. It is stated that:
The PASA solution utilizes stable and static topology information...
I think this over-simplifies the real world. Consider for example:
The smart grid power distribution network forms a typical tree topology...
That's true (although it might be complicated by grid-tied solar generation.) But that doesn't mean the topology is static - customers can be added or disconnected at any time. Similarly, topology changes within a home can happen (new appliance, new power outlet, etc.):
The Home Gateway, the PLC routers, and most of the home appliance are fixed in different locations. They rarely move after setup.
But they do move (in my experience, they can move because of buying new furniture, or for even smaller reasons). Similar comments apply to the data center monitoring use case; in a large DC there will be changes every day. The same is true of industrial networks. There should be a change management process, but there will always be change. So the use cases are not truly *static*; they change from time to time. I can see that the draft covers the case of a node *joining* the network, but I believe the draft lacks an important section on what happens when a node *leaves* the network (how does the address get reclaimed?) and when a node *moves* (how does the node know that it has moved, so that it can release its old address and acquire a new one?). Nits:
4.2. Smart Home Smart home or home domotica
"Domotica" is not an English word. It appears to be a trade name of some kind.
The address assignment described in this document relies on the Generic Address Assignment mechanism described in [I-D.iannone-6lo-nd-gaao]
Obsolete draft name. Should be draft-ietf-6lo-nd-gaao Regards Brian Carpenter (not on the 6lo list) On 09-Dec-24 22:28, Shwetha wrote:
Dear 6lo WG, (CC'ing 6man.) This message initiates WG Last Call on the following document: "Path-Aware Semantic Addressing (PASA) for Low power and Lossy Networks" https://datatracker.ietf.org/doc/html/draft-ietf-6lo-path-aware-semantic-addressing-09 <https://datatracker.ietf.org/doc/html/draft-ietf-6lo-path-aware-semantic-addressing-09> This last call will end on Monday, 23rd of December. Please provide your feedback on this document on the mailing list. Thanks, Carles and Shwetha -------------------------------------------------------------------- IETF IPv6 working group mailing list i...@ietf.org List Info: https://mailman3.ietf.org/mailman3/lists/i...@ietf.org/ --------------------------------------------------------------------
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