clear interface stats for network interface?

From: Tim Mooney (mooney@dogbert.cc.ndsu.NoDak.edu)
Date: Tue May 28 2002 - 15:29:24 EDT


Server: Tru64 UNIX 4.0f + patch kits through January 2002

I have what I think should be a simple question, but I can't find a
working answer. We would like to be able to clear (zero) the counters
for the following fields

        Ipkts
        Ierrs
        Opkts
        Oerrs
        Coll

that are output for

        netstat -in

Even being able to zero some of them would be handy. It sure seems like

        netstat -Itu1 -z

should do it, based on the man page, and indeed if I run that command I
get the long statistics that says "nnn seconds since last zeroed" and
some of the numbers appear to have been reset since the last time that
`netstat -Itu1 -z' was run, but running

        netstat -in

still shows packet totals that are always increasing. Is there any way
to reset *those* counters?

I've also tried coming in over the tu0 interface and doing an

        ifconfig tu1 down; ifconfig tu1 up

but that didn't reset the counters displayed via `netstat -in' either.

Short of rebooting or completely deleting the interface and recreating it,
is there a way to clear the counters that are shown via `netstat -in'?

Thanks!

Tim

-- 
Tim Mooney                              mooney@dogbert.cc.ndsu.NoDak.edu
Information Technology Services         (701) 231-1076 (Voice)
Room 242-J6, IACC Building              (701) 231-8541 (Fax)
North Dakota State University, Fargo, ND 58105-5164


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