BERTRAND joël <joel.bertrand%systella.fr@localhost> writes: > Greg Troxel a écrit : >> >> That's not netstat -s, it's netstat -i. (Also you have wrapped the >> diffs which makes them hard to read.) > > netstat -s -I tap0 only returns one line : > > einstein# netstat -I tap0 -s > tap0 1500 <Link> f2:0b:a4:31:da:48 104 0 0 0 > 0 > einstein# That's not -s, that's what -I returns. It never occured to me to do them at once. > If I use netstat -s without interface, I will obtain an > aggregation of all interfaces statistics and I don't know how > interpret result. Yes, that's right. -s does not show you interface stats. It shows you overall networking stats. Unfortunately you need to understand more to make sense of it. But seriously: do the exercise I suggest: run netstat -s before and after, and diff, and think about what you see, and look up things to understand.
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