Re: query !!

sthaug@nethelp.no
Sun, 25 Oct 1998 15:57:55 +0100

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> I am using TCPdump with Netperf and I want to compare the number of packets dropped on both cases at the receiver interface. Does anyone know how I could accurately calculate the dropped packets at the receiver using tcpdump ?

With most packet grabbers, you can't. If you have a kernel with BPF, tcpdump
will tell you the number of dropped packets when you exit, from the BIOCGSTATS
ioctl call.

Steinar Haug, Nethelp consulting, sthaug@nethelp.no

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