Posted on 2011-10-17
Last Modified: 2012-06-21
If we send fragmented datagram from node A to node B, for how long node B will be waiting for all fragments to assemble it?

Question by:pizdzielec
    LVL 9

    Accepted Solution

    This depends on the TIME_WAIT setting for the underlying Operating System Protocol Stack.

    TIME_WAIT time is generally set to double the packets maximum age. This value is the maximum age your packets will be allowed to get to before the network discards them. The reason for this is because there may still be live packets out in the network on its way to you.

    If the timer for the reassembly expires with any of the fragments missing, the message cannot be reconstructed. The fragments are discarded, and an ICMP Time Exceeded message generated.

    Hope this helps!

    Author Closing Comment

    Awesome, thx a lot.


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