Re: [homenet] New Version Notification for draft-barth-homenet-wifi-roaming-00.txt

Dave Taht <dave.taht@gmail.com> Mon, 30 November 2015 13:55 UTC

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Date: Mon, 30 Nov 2015 14:55:18 +0100
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From: Dave Taht <dave.taht@gmail.com>
To: Mikael Abrahamsson <swmike@swm.pp.se>
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Cc: HOMENET <homenet@ietf.org>, Michael Thomas <mike@mtcc.com>
Subject: Re: [homenet] New Version Notification for draft-barth-homenet-wifi-roaming-00.txt
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On Mon, Nov 30, 2015 at 2:40 PM, Mikael Abrahamsson <swmike@swm.pp.se> wrote:
> On Thu, 26 Nov 2015, Michael Thomas wrote:
>
>> Even if it's a 1/2 second, the l2 handover is still far too long for, say,
>> real time flows. Isn't this why you want to do make-before-break if at all
>> possible? at that point, time-to-flow is less of an issue, right?
>
>
> I wasn't even aware that 802.11 can do make-before-break? A quick search
> seems to indicate that 802.11 roaming is strictly break-before-make?

Well, in the two or more radio (2.4 and 5ghz) case, you can easily
roam between the two radios with many chipsets. Some chipsets only
allow one active radio at a time, however.



>
> --
> Mikael Abrahamsson    email: swmike@swm.pp.se
>
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