Date: 27 Sep 1997 10:08:02 +0800 From: keyser@clio.rice.edu (Kevin Keyser) To: questions@freebsd.org Subject: netstat -i for lo0 Message-ID: <60hpq2$l29$1@FreeBSD.csie.NCTU.edu.tw>
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I am running 2.2.2R at home on a P5/60/PCI/EISA, 32M, Adaptec 2742,
3com 3c592. OS/2 is on one SCSI disk, FreeBSD on the other, using
OS/2's boot manager.
I have been seeing some strange behavior in my "netstat -i" numbers
for the loopback. Each time I run "netstat -i", ipkts and opkts are
incremented by 48. Note that it does not matter how long or short I
wait between invocations; the change is always 48, like running
netstat causes it. In the example below, the machine is otherwise
*very* idle, no cron jobs other than the install defaults, and is
the only node up on my net.
Otherwise, everthing is working fine and there seems to be no bad
effect from this situation other than it's bugging me. I have a
similarly configured system at work which does not do this. Does
anyone know an explanation?
Thanks.
Kevin
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nova# netstat -i
Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll
vx0 1500 <Link> 00.a0.24.38.85.e6 0 0 1 0 0
vx0 1500 172.16.1/24 nova 0 0 1 0 0
lp0* 1500 <Link> 0 0 0 0 0
lo0 16384 <Link> 288 0 288 0 0
lo0 16384 your-net localhost 288 0 288 0 0
nova# netstat -i
Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll
vx0 1500 <Link> 00.a0.24.38.85.e6 0 0 1 0 0
vx0 1500 172.16.1/24 nova 0 0 1 0 0
lp0* 1500 <Link> 0 0 0 0 0
lo0 16384 <Link> 336 0 336 0 0
lo0 16384 your-net localhost 336 0 336 0 0
nova# netstat -i
Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll
vx0 1500 <Link> 00.a0.24.38.85.e6 0 0 1 0 0
vx0 1500 172.16.1/24 nova 0 0 1 0 0
lp0* 1500 <Link> 0 0 0 0 0
lo0 16384 <Link> 384 0 384 0 0
lo0 16384 your-net localhost 384 0 384 0 0
nova# ifconfig -a
vx0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
inet 172.16.1.10 netmask 0xffffff00 broadcast 172.16.1.255
ether 00:a0:24:38:85:e6
lp0: flags=8810<POINTOPOINT,SIMPLEX,MULTICAST> mtu 1500
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
inet 127.0.0.1 netmask 0xff000000
nova# ps -ax
PID TT STAT TIME COMMAND
0 ?? DLs 0:00.01 (swapper)
1 ?? Is 0:00.03 /sbin/init --
2 ?? DL 0:00.00 (pagedaemon)
3 ?? DL 0:00.00 (vmdaemon)
4 ?? DL 0:00.15 (update)
25 ?? Is 0:00.09 mfs -s 24576 /dev/sd0s3b /tmp (mount_mfs)
75 ?? Ss 0:00.13 syslogd
84 ?? Is 0:00.01 portmap
94 ?? I 0:00.00 nfsiod -n 4
95 ?? I 0:00.00 nfsiod -n 4
96 ?? I 0:00.00 nfsiod -n 4
97 ?? I 0:00.00 nfsiod -n 4
110 ?? Is 0:00.14 inetd
112 ?? Is 0:00.06 cron
115 ?? Is 0:00.04 lpd
118 ?? Is 0:00.02 sendmail: accepting connections on port 25 (sendmail)
164 ?? I 0:00.02 /usr/libexec/getty std.9600 ttyd0
160 v0 Ss 0:00.26 -csh (csh)
206 v0 R+ 0:00.02 ps -ax
161 v1 Is 0:00.49 -tcsh (tcsh)
176 v1 I+ 0:00.08 tip direct
177 v1 I+ 0:01.02 tip direct
162 v2 Is+ 0:00.03 /usr/libexec/getty Pc ttyv2
163 v3 Is+ 0:00.03 /usr/libexec/getty Pc ttyv3
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