[Nfd-dev] Interest lifetime limit

[Burke, Jeff]

I don't know that we have enough evidence for how this might be used to
restrict it to ~32 seconds maximum. This isn't even 10x the default value
and doesn't approach what came up in the unresolved "long-lived interest"
discussion. On the other hand, millisecond resolution (or decisecond
resolution, at least) seems like it might also be useful in some cases.

Is there a strong reason for this to be 2 bytes?  Could we have a 4-byte
long in ms instead, and have the maximum value correspond to a "hold it as
long as you're willing" behavior?

Is FreshnessPeriod also 2 bytes?   This seems similarly limiting.  This
wouldn't handle our canonical NYTimes front page example.

Jeff


On 3/20/14, 9:26 PM, "Giovanni Pau" <gpau at cs.ucla.edu> wrote:

>I would not bound it in this way is not better to express it as a 2 byte
>in seconds so we have the flexibility for future applications?
>
>/g. 
>==========================
>It had long since come to my attention that people of accomplishment
>rarely sat back and let things happen to them. They went out and happened
>to things. 
>
>- Leonardo da Vinci
>==========================
>
>
>
>
>On Mar 20, 2014, at 7:48 PM, Lixia Zhang <lixia at cs.ucla.edu> wrote:
>
>> 
>> On Mar 20, 2014, at 5:04 PM, Alex Afanasyev
>><alexander.afanasyev at ucla.edu> wrote:
>> 
>>> Why this specific value?  Can we just have something like a minute or
>>>so?
>> 
>> as far as I can tell, it is 2^15, i.e. positive integer for a 2-byte
>>value
>> (32sec, not too far from 1 min :-)
>> 
>> 
>>> 
>>> On Mar 20, 2014, at 5:02 PM, Junxiao Shi
>>><shijunxiao at email.arizona.edu> wrote:
>>> 
>>>> A practical upper bound for InterestLifetime is necessary. I suggest
>>>>a value around 32768ms.
>>>> 
>>>> If an Interest has InterestLifetime larger than the upper bound,
>>>>incoming Interest pipeline should set this field to the upper bound.
>>>>Subsequent processing, including what is sent out, behaves as if
>>>>InterestLifetime equals the upper bound.
>>>> 
>>>> Yours, Junxiao
>>>> 
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