Re: [ipwave] draft-ietf-ipwave-ipv6-over-80211ocb-00 .11-OCB (non) use of beacons

[Alexandre Petrescu <[e-mail]>]

But some OCB implementations do send Beacons.

In that sense, I propose to say the following.

>> 4.  Aspects introduced by the OCB mode to 802.11
>>
>> In the IEEE 802.11 OCB mode, all nodes in the wireless range can
>> directly communicate with each other without authentication/
>> association procedures.  Briefly, the IEEE 802.11 OCB mode has the
>> following properties:
>>
>> o  Wildcard BSSID (i.e., all bits are set to 1) used by each node

old:
>> o  No beacons transmitted

new:
>> o  OCB implementations do not receive beacons and most OCB
>> implementations do not transmit Beacons.

Alex


Le 01/02/2017 à 20:20, Dick Roy a écrit :
> To reiterate, in OCB operation there are NO beacons and there are NO
> APs.
>
>
>
> RR
>
>
>
> ------------------------------------------------------------------------
>
>  *From:*Jérôme Härri [mailto:[e-mail]] *Sent:*
> Wednesday, February 1, 2017 4:04 AM *To:* 'Alexandre Petrescu';
> [e-mail] *Subject:* Re: [ipwave]
> draft-ietf-ipwave-ipv6-over-80211ocb-00 .11-OCB does use beacons
>
>
>
> Dear all,
>
>
>
> I do not agree and I would be happy to have the reference in the
> IEEE 802.11-2016 stating otherwise.
>
>
>
> In the 802.11 standard, it clearly state the following line:
>
>
>
> When dot11OCBActivated is true in a STA:
>
> " The STA _may send management frames of subtype Action_ and, if the
> STA maintains a TSF Timer, subtype Timing Advertisement "
>
> " The STA may send _control frames_, _except_ those of _subtype
> PS-Poll, CF-End, and CF-End + CFAck_ "
>
> " The STA may send _data frames of subtype Data, Null, QoS Data, and
> QoS Null_. "
>
>
>
> A beacon is a management frame, but not of a class Action, so it
> _cannot be transmitted when dot11OCBActivated_ is true in a STA. But
> I agree that it is ambiguous…nevertheless, I would then replace in
> the draft the mention of what OCB can do or can’t do (e.g. sending
> beacons) with the exact 802.11-2016 statements. This would avoid
> misunderstanding.
>
>
>
> But even if it could be possible, this does not make much sense. A
> beacon is transmitted on a channel you need to connect to get BSS
> information and also to get the right frequency. In case of OCB
> (outside context of a BSS), it is not required. But the real question
> is ‘why’ would we need beacon, assuming it could be transmitted?
>
>
>
> Best Regards,
>
>
>
> Jérôme
>
>
>
> -----Original Message----- From: its [mailto:[e-mail]] On
> Behalf Of Alexandre Petrescu Sent: Wednesday 01 February 2017 11:51
> To: [e-mail] Subject: [ipwave]
> draft-ietf-ipwave-ipv6-over-80211ocb-00 .11-OCB does use beacons
>
>
>
> draft-ietf-ipwave-ipv6-over-80211ocb-00 .11-OCB does use beacons
>
>
>
> Hello IPWAVErs,
>
>
>
> It was suggested in private that, contrary to what the draft says,
> the .11-OCB does use beacons.
>
>
>
> As such, the following line should disappear from the draft:
>
>
>
>> 4.  Aspects introduced by the OCB mode to 802.11
>
>>
>
>> In the IEEE 802.11 OCB mode, all nodes in the wireless range can
>
>> directly communicate with each other without authentication/
>
>> association procedures.  Briefly, the IEEE 802.11 OCB mode has the
>
>> following properties:
>
>>
>
>> o  Wildcard BSSID (i.e., all bits are set to 1) used by each node
>
>>
>
>> o  [strike through] No beacons transmitted
>
>
>
> Yours,
>
>
>
> Alex
>
>
>