[ndnSIM] InterestLifetime

Lixia Zhang lixia at cs.ucla.edu
Sat Oct 2 06:44:32 PDT 2021

if you are asking for the current definition: Interest Lifetime is static (i.e. not changed hop-by-hop)

(there had been much discussion on this issue in the past, there are arguments on each side)

> On Oct 2, 2021, at 6:28 AM, Waseeq Islam via ndnSIM <ndnsim at lists.cs.ucla.edu> wrote:
> Hi all,
> I want to know that whether Interest Lifetime is static or dynamic in native NDN. Let’s consider the consumer setting the InterestLifetime to 4s. After passing 5 hops, the Interest packet will remain 4s; or it will be dynamically updated with time (e.g., after traversing 4 hops the InterestLifetime will become 3s).
> By dynamic Interest lifetime, I mean is it possible for forwarders to use the InterestLifetime to check whether the lifetime of received Interest is greater than zero, so that it participates in its dissemination. 
> Thanks in anticipation.
> Regards,
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