Re: [rtcweb] NAT behavior heuristics

"Dan Wing" <dwing@cisco.com> Thu, 02 August 2012 23:46 UTC

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From: "Dan Wing" <dwing@cisco.com>
To: "'Martin Thomson'" <martin.thomson@gmail.com>
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Date: Thu, 2 Aug 2012 16:46:02 -0700
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Cc: rtcweb@ietf.org
Subject: Re: [rtcweb] NAT behavior heuristics
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> -----Original Message-----
> From: Martin Thomson [mailto:martin.thomson@gmail.com]
> Sent: Thursday, August 02, 2012 4:21 PM
> To: Dan Wing
> Cc: rtcweb@ietf.org
> Subject: Re: [rtcweb] NAT behavior heuristics
> 
> On 2 August 2012 16:15, Dan Wing <dwing@cisco.com> wrote:
> >> We might want to consider other options for things like power saving
> >> in addition to this.  One option that springs to mind is the ability
> >> to explicitly shut down streams that aren't in use and pay the price
> >> for warm-up.  Optimizations to candidate pair select at warm-up
> might
> >> be handy in this case.
> >
> > Such as draft-westerlund-avtext-rtp-stream-pause?
> 
> That would work at the RTP layer.  That could flow down to the UDP
> flow, but resumption is non-trivial.  If you lose the NAT bindings as
> a result, you would have to be prepared to restart the flow.  The
> (previously) active flow might simply have to represent the highest
> priority candidate pair in an ICE reboot.

Thanks.

Perhaps modeling the long-duration stopped flow as a long-duration
mobility event (draft-wing-mmusic-ice-mobility) might be worthwhile;
they feel the same to me at the moment.

-d