Hi All,
We are doing some experiment, where we are trying to
measure the processing time taken by a node when a
packate pssess throgh it.
--------eth0[Linux-PC Router]eth1-------
We run tcpdump within this PC at eth0(incomming
interface) and eth1(outgoing interface) . Then we find
out our packate in both the captures and the
difference of two captures gives processing time of
the node
Now, the question: Is doing so a right way to measure
the processing time, as we are not sure where exactly
does libcap captures the packates. Is it right before
network driver or after it ao anywhere else?
Any help on this issue will be highly appreciable.
Thanks,
Nitin
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