[Ns-bugs] [Bug 443] New: Net device pcap traces arent consistent with what tcpdump would display

code@nsnam.ece.gatech.edu code at nsnam.ece.gatech.edu
Tue Dec 9 20:07:09 PST 2008


http://www.nsnam.org/bugzilla/show_bug.cgi?id=443

           Summary: Net device pcap traces arent consistent with what
                    tcpdump would display
           Product: ns-3
           Version: ns-3-dev
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: devices
        AssignedTo: ns-bugs at isi.edu
        ReportedBy: craigdo at ee.washington.edu
   Estimated Hours: 0.0


We have lots of trace sources in the various net devices in the system, and we
hook these traces into what we advertize as a pcap trace output.  In some
cases, we just kindof fake it.  For example, in the CSMA device the transmit
event is hooked into the transmit queue Enqueue event, which can give
misleading results.  This situation should really have a dedicated low level Tx
hook symmetric with Rx.

If we're going to advertise pcap traces, they should really work like one would
expect -- consistently across the devices.


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