Re: [manet] Question about draft-ietf-manet-dlep-traffic-classification-05

"Rogge, Henning" <henning.rogge@fkie.fraunhofer.de> Fri, 23 July 2021 06:08 UTC

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From: "Rogge, Henning" <henning.rogge@fkie.fraunhofer.de>
To: "manet@ietf.org" <manet@ietf.org>
Thread-Topic: [manet] Question about draft-ietf-manet-dlep-traffic-classification-05
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Date: Fri, 23 Jul 2021 06:08:31 +0000
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Subject: Re: [manet] Question about draft-ietf-manet-dlep-traffic-classification-05
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Not necessarily replace TID with LID... just make TID an attribute of a "destination" and mandate a LID to differentiate between different destinations with the same MAC. Most likely it wouldn't even require an implementation change in your code on the receiver side, just adding the link-ids on the transmitter side (you could of course add a check that nobody gives you two different TIDs with the same LID later).

Yes, it might be necessary (and a good idea in my opinion) to relaxe the LID RFC a bit (or post an update to it) that you don't need to use the MAC of the radio (rather you SHOULD use it if your radio is a router and no bridge) and that you don't need to add IP addresses (again, unless its a router).

Adding more "primary/unique keys" with more DLEP documents will be a very painful change to most DLEP implementations... having a generic set of primary keys (mac+linkid) would keep this complexity in check.

Henning

________________________________________
Von: Lou Berger <lberger@labn.net>
Gesendet: Donnerstag, 22. Juli 2021 21:23
An: Rogge, Henning; manet@ietf.org
Cc: Velt, R. (Ronald) in 't
Betreff: Re: [manet] Question about draft-ietf-manet-dlep-traffic-classification-05

I've been grappling with this and I think you are basically saying
replace the the TID with the LID.  At one level this sounds like a good
idea, but in looking at how to change the TC draft to effect this change
it seems to be that we'd need to change the base specification (RFC8703)
to allow for operation with normal endpoints (without Layer 3 DLEP
Destinations or Gateway Nodes).

Given that use of LID requires a spec and implementation change, I'm not
sure of the value in moving from TID to LID.

Lou


> Henning Rogge
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