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| author | Gleb Smirnoff <glebius@FreeBSD.org> | 2021-12-19 16:22:12 +0000 |
|---|---|---|
| committer | Gleb Smirnoff <glebius@FreeBSD.org> | 2021-12-19 16:22:12 +0000 |
| commit | 71d2d5adfe18e80e5f8afeb4f86ef69be1aaad81 (patch) | |
| tree | f927619653e72faba2e22e1eabce2f2ee82c42e6 /usr.bin | |
| parent | cb3772639fd0eb74961ff94248d448f5c7f035a9 (diff) | |
| download | src-71d2d5adfe18e80e5f8afeb4f86ef69be1aaad81.tar.gz src-71d2d5adfe18e80e5f8afeb4f86ef69be1aaad81.zip | |
tcptw: count how many times a tcptw was actually useful
This will allow a sysadmin to lower net.inet.tcp.msl and
see how long tcptw are actually useful.
Diffstat (limited to 'usr.bin')
| -rw-r--r-- | usr.bin/netstat/inet.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/usr.bin/netstat/inet.c b/usr.bin/netstat/inet.c index dc777b0be990..b77447575911 100644 --- a/usr.bin/netstat/inet.c +++ b/usr.bin/netstat/inet.c @@ -857,13 +857,23 @@ tcp_stats(u_long off, const char *name, int af1 __unused, int proto __unused) "{N:/Path MTU discovery black hole detection min MSS activation%s}\n"); p(tcps_pmtud_blackhole_failed, "\t{:pmtud-failed/%ju} " "{N:/Path MTU discovery black hole detection failure%s}\n"); + + xo_close_container("pmtud"); + xo_open_container("tw"); + + p(tcps_tw_responds, "\t{:tw_responds/%ju} " + "{N:/time%s connection in TIME-WAIT responded with ACK}\n"); + p(tcps_tw_recycles, "\t{:tw_recycles/%ju} " + "{N:/time%s connection in TIME-WAIT was actively recycled}\n"); + p(tcps_tw_resets, "\t{:tw_resets/%ju} " + "{N:/time%s connection in TIME-WAIT responded with RST}\n"); + + xo_close_container("tw"); #undef p #undef p1a #undef p2 #undef p2a #undef p3 - xo_close_container("pmtud"); - xo_open_container("TCP connection count by state"); xo_emit("{T:/TCP connection count by state}:\n"); |