[Ns-bugs] [Bug 197] New: Fragmentation bug

[bugzilla-daemon@nsnam-www.ece.gatech.edu]

http://www.nsnam.org/bugzilla/show_bug.cgi?id=197

           Summary: Fragmentation bug
           Product: ns-3
           Version: unspecified
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P3
         Component: simulation core
        AssignedTo: ns-bugs at isi.edu
        ReportedBy: vincent at clarinet.u-strasbg.fr


When we send packet fragments (created by packet->CreateFragment()), it
occurred a problem ("assert failed. file=../src/common/packet-metadata.cc,
line=436, cond="m_used != prev && m_used != next") when the receiver try to
reassemble the fragment. Note that the receiver reassembles when all the
fragments are here.

In the test-case patch, we modify the udp-echo-client and udp-echo-server
application in order to send fragment packet for client-side and reassemble
them for server-side. In fact we found this bug by implementing the IPv6
fragmentation extension.


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