[ns] Numbering of packets in NS2

[Attilio Fiandrotti]

Hello everyone

I'm using NS 2.33 patched with the 802.11e EDCA MAC implementation
provided by the university of Berlin.
I have a question about the numbering of packets in NS: in the official
NS manual is written [1] that the "Ii" field is a unique identifier for
a given packet. I interpreted this as "unique within a simulation"
however i found out that identifiers are unique only within a given
flow, not within the whole simulation.
Is my understanding correct or there is something wrong with my
simulation environment ?

many thanks

Attilio Fiandrotti

[1] http://www.isi.edu/nsnam/ns/doc/node186.html