Re: [RAM] The mapping problem: rendezvous points?

[Marshall Eubanks <[e-mail]>]

On May 9, 2007, at 12:52 AM, Ted Hardie wrote:

> At 6:30 PM -0500 5/8/07, Spencer Dawkins wrote:
>>> Dave,
>>>
>>> On May 8, 2007, at 1:27 PM, Dave Thaler wrote:
>>>> Applications generally work fine with random loss.
>>>> They work less well with _deterministic_ loss.
>>>
>>> I would've thought the opposite would be true.
>>
>> Dave,
>>
>> I've heard variations on the "deterministic loss" thing in several  
>> places recently, and I don't understand all the context, but  
>> people have usually been talking about deterministic loss AT THE  
>> BEGINNING of a TCP connection, or AT THE BEGINNING of an MPEG  
>> stream where you're losing complete images and then all you  
>> receive for a while is deltas from the image you lost.
>
> It's my understanding that some applications facing the media  
> stream aspect of this
> will negotiate the codec or codec parameters to degrade the quality  
> in the face of
> this.  This degradation can last for the duration of the stream, or  
> renegotiation
> can take place but result in slow restoration of quality.
>

That it correct. Note that the application could decide that the  
session was not possible and drop it entirely.
(Say, if there was only 1 bit rate on offer.)

If the interruption is as long as a couple of seconds, that is quite  
possible.

> 				regards,
> 					Ted
>

Regards
Marshall

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