[Ns-bugs] [Bug 166] Loss of Tag and change in size of Packet using TCP.
bugzilla-daemon at nsnam-www.ece.gatech.edu
Sat Apr 19 09:16:07 PDT 2008
------- Comment #13 from tomh at tomh.org 2008-04-19 12:16 -------
(In reply to comment #12)
> I thought that packet tags were not supposed to propagate from one node to
> another?... Using this feature would be kind of like cheating the simulation...
> I've always thought tags were only meant to pass data between layers within a
> node's stack. For communicating between nodes one should use a _protocol_.
I don't think we should enforce such a policy on tag use. For instance, an
often cited use is to mark an application flow with some kind of flow-id so it
can be observed and traced throughout the network. Another use case would be
to compute statistics on the delay between point A and point B in a topology;
point A could add timestamp tags to packets and point B could read them.
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