Re: [STDS-802-11-TGAK] 11-15/931r9 uploaded
Just a quick additional note that it appears that 11ad relay is always
explicitly set-up by a STA that has knowledge of the capabilities of
both ultimate end points as well as knowing about the relay.
Thanks,
Donald
=============================
Donald E. Eastlake 3rd +1-508-333-2270 (cell)
155 Beaver Street, Milford, MA 01757 USA
d3e3e3@xxxxxxxxx
On Wed, Jan 20, 2016 at 8:17 AM, David Kloper (dakloper)
<dakloper@xxxxxxxxx> wrote:
> A few responses inline.
>
> -----Original Message-----
> From: Mark Hamilton [mailto:mark.hamilton2152@xxxxxxxxx]
> Sent: Wednesday, January 20, 2016 12:29 AM
> To: STDS-802-11-TGAK@xxxxxxxxxxxxxxxxx
> Subject: Re: [STDS-802-11-TGAK] 11-15/931r9 uploaded
>
> Hi, Donald, all,
>
> Probably too late, but I have the following concerns:
> - CID 40: By saying only an AP can transmit a SYNRA, we have not solved the
> problem of an AP sending such a SYNRA to a relay STA. (At least I don't
> think we've eliminated that.) Is the intention that the relay STA should be
> able to process all the SYNRA indication bits for any downstream clients
> attached to the relay, and translate this frame transmission into serial
> unicast to each/all of them? I suspect that is possible, but I also suspect
> it is more work than most relays are expected to handle currently. Might be
> worth checking with experts on the relays, if you haven't already.
> [DSK] No, the intention is that the GLK AP must do serial unicast, at least
> to the relay Clients, and so excludes them from any SYNRA bitmap.
> Not only would SYNRA replication by Relay require more
> knowledge/functionality from Relay to replicate, but serializing from Relay
> would break duplicate detection, and is not possible because encryption is
> from AP to Client vs AP to Relay.
> Lets make sure the changes discussed yesterday are referenced in the comment
> resolution.
> - CID 71: Two comments on this resolution: 1) I don't understand the
> comment that "11ad is sufficiently transparent that EPD/LPD is irrelevant."
> I can agree (perhaps) that the relay is (should be) transparent. But, how
> does the transmitter know whether the end station on the other side of the
> relay) is EPD or LPD?
> [DSK] Looks like the relay is just forwarding the frame downstream, which
> was encrypted by AP and is decrypted by Client STA, so the Relay can't
> convert even if it knew.
> We will remove the EPD bit from Relay, and that is an attribute negotiated
> between AP and Client.
> 2) The change to 9.43 seems to be saying that we will never use SYNRA if
> there are relays in the network (?). Or, maybe only if a relay is in the
> path to one of the end stations included in this particular SYNRA (?).
> [DSK] I'd be happy to require serial unicast only for Clients through a
> relay, allowing SYNRA as an option to other STA.
> Can we clarify which? Also, I'm not sure how to relate this to the change
> in CID 40. So, SYNRA cannot be used when transmitting to a relay - but we
> seem to have rejected saying that in clause 4...?
> - CID 431: A nit, but I think we (WG11) are generally trying not to use "if
> and only if" language, but to list out as "if ... and not otherwise". You
> could check with Adrian.
>
> Mark
>
> -----Original Message-----
> From: Donald Eastlake [mailto:d3e3e3@xxxxxxxxx]
> Sent: Tuesday, January 19, 2016 4:59 AM
> To: STDS-802-11-TGAK@xxxxxxxxxxxxxxxxx
> Subject: [STDS-802-11-TGAK] 11-15/931r9 uploaded
>
> An r9 of 11-15/931 has been uploaded. The resolutions in that spreadsheet of
> CIDs up through and including CID 431, except CID CID 208, were discussed
> and in some cases modified yesterday. The intent is to motion those
> resolutions at the evening TGak session today.
>
> Thanks,
> Donald
> =============================
> Donald E. Eastlake 3rd +1-508-333-2270 (cell)
> 155 Beaver Street, Milford, MA 01757 USA d3e3e3@xxxxxxxxx
>
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