[Bug 237915] "netstat -i" shows idrop as 18446744073709551612 (-4) for lagg0

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=237915

Peter Eriksson <pen at lysator.liu.se> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|12.0-RELEASE                |12.2-RELEASE
          Component|bin                         |kern

--- Comment #1 from Peter Eriksson <pen at lysator.liu.se> ---
The incorrect counters still seems to be there for FreeBSD 12.2 with ixl & lagg
interfaces:

This is the output from:
  (netstat -i|netstat -ih )| egrep 'Name|ixl|lagg'

Caught during the boot phase (modified /etc/rc.d/netif)

Name    Mtu Network       Address              Ipkts Ierrs Idrop    Opkts Oerrs
 Coll
ixl0   1500 <Link#5>      3c:fd:fe:2f:36:a0 281474976710650     0 4294966954
281474976710650     0     0
ixl1*  1500 <Link#6>      3c:fd:fe:2f:36:a2        0     0     0        0     0
    0
ixl2   1500 <Link#7>      3c:fd:fe:2f:36:a0 281474976710617     0 4294966953
281474976710643     0     0
ixl3*  1500 <Link#8>      3c:fd:fe:2f:36:a6        0     0     0        0     0
    0
lagg0  1500 <Link#10>     3c:fd:fe:2f:36:a0 562949953421267     0 8589933907
562949953421293     0     0
lagg0     - 130.236.8.32/ runur00.it.liu.se        0     -     -        0     -
    -
lagg0     - fe80::%lagg0/ fe80::3efd:feff:f        0     -     -        1     -
    -
lagg0     - 2001:6b0:17:2 runur00.it.liu.se        0     -     -        1     -
    -

Name    Mtu Network       Address              Ipkts Ierrs Idrop    Opkts Oerrs
 Coll
ixl0   1.5K <Link#5>      3c:fd:fe:2f:36:a0     281T     0  4.3G     281T     0
    0
ixl1*  1.5K <Link#6>      3c:fd:fe:2f:36:a2        0     0     0        0     0
    0
ixl2   1.5K <Link#7>      3c:fd:fe:2f:36:a0     281T     0  4.3G     281T     0
    0
ixl3*  1.5K <Link#8>      3c:fd:fe:2f:36:a6        0     0     0        0     0
    0
lagg0  1.5K <Link#10>     3c:fd:fe:2f:36:a0     563T     0  8.6G     563T     0
    0
lagg0     - 130.236.8.32/ runur00.it.liu.se        0     -     -        0     -
    -
lagg0     - fe80::%lagg0/ fe80::3efd:feff:f        0     -     -        1     -
    -
lagg0     - 2001:6b0:17:2 runur00.it.liu.se        0     -     -        1     -
    -


Some time after it has booted this is reported:

Name    Mtu Network       Address              Ipkts Ierrs Idrop    Opkts Oerrs
 Coll
ixl0   1500 <Link#5>      3c:fd:fe:2f:36:a0   537485     0 4294966954   149747 
   0     0
ixl1*  1500 <Link#6>      3c:fd:fe:2f:36:a2        0     0     0        0     0
    0
ixl2   1500 <Link#7>      3c:fd:fe:2f:36:a0     1278     0 4294966953      210 
   0     0
ixl3*  1500 <Link#8>      3c:fd:fe:2f:36:a6        0     0     0        0     0
    0
lagg0  1500 <Link#10>     3c:fd:fe:2f:36:a0   538801     0 8589933907   149957 
   0     0
lagg0     - 130.236.8.32/ runur00.it.liu.se   120394     -     -   117460     -
    -
lagg0     - fe80::%lagg0/ fe80::3efd:feff:f      194     -     -      308     -
    -
lagg0     - 2001:6b0:17:2 runur00.it.liu.se     8183     -     -     9551     -
    -

Name    Mtu Network       Address              Ipkts Ierrs Idrop    Opkts Oerrs
 Coll
ixl0   1.5K <Link#5>      3c:fd:fe:2f:36:a0     537k     0  4.3G     150k     0
    0
ixl1*  1.5K <Link#6>      3c:fd:fe:2f:36:a2        0     0     0        0     0
    0
ixl2   1.5K <Link#7>      3c:fd:fe:2f:36:a0     1.3k     0  4.3G      210     0
    0
ixl3*  1.5K <Link#8>      3c:fd:fe:2f:36:a6        0     0     0        0     0
    0
lagg0  1.5K <Link#10>     3c:fd:fe:2f:36:a0     539k     0  8.6G     150k     0
    0
lagg0     - 130.236.8.32/ runur00.it.liu.se     120k     -     -     117k     -
    -
lagg0     - fe80::%lagg0/ fe80::3efd:feff:f      194     -     -      308     -
    -
lagg0     - 2001:6b0:17:2 runur00.it.liu.se     8.2k     -     -     9.6k     -
    -


This is one a basically idle test machine (with some, but not much traffic).
8.6G idrops on 539k packets? :-)

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