[ndnSIM] Counting total individual Interest packets

[Pawan Subedi]

Dear Team,

I have a simple 3*3 grid scenario, with two far-ends nodes as Producer and
Consumer respectively. Moreover, the consumer (using ConsumerCbr) is set to
send out Interest every 5 seconds, and also the lifetime of the Interest
packet is set to 4 seconds (with RetxTimer set to 4.5 seconds). The
simulation is running for 59 seconds.
With this scenario, I could see that the consumer is retransmitting
Interest for some packet (I was able to verify this based on AppDelay
traces as there were different values for lastDelay and Full Delay for 3
sequence numbers, and also from L3RateTraces, where the consumer node is
showing 3 InTimedOutInterest at AppFace).  My concern in this setup is as
follows:
In L3RateTraces, for consumer node, the count of appFace InInterest is 12
but I was expecting it to be 15 with 12 regular Interests and 3
retransmissions. Moreover, the sequence numbers in App delay traces range
from 0 to 8 (inclusive) only.
Could you please explain what could have caused this? At the same time, how
should I count the total Interest packets (excluding retransmissions) sent
out by the consumer, at present I was using simulation time/frequency,
which I think isn't working here.

Thank you!

Sincerely,
Pawan Subedi
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