My ethernet device mb2 is a gigabit port on the motherboard of a HP ML110 Gen9
workstation with an ethernet cable that connects to a wifi device. It's
getting what looks like an unreasonable number of dropped packets. The number
of dropped packets is almost exactly 1 per minute. mb2 is part of a Linux
bonding device so it's bridged to 2 other ports on that system and connects to
another Linux bridge via a different port (STP is running).
What might this be? How can I track it down? I don't think it causes any
real problems as 1/minute is almost nothing compared to gigabit Ethernet speed
but I want to know what's happening.
It seems likely that I'll have to connect my wifi device to a different system
outside of a bridge to eliminate complexity. But I'm looking for advice
before I take my home network apart.
# ifconfig mb2
mb2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
ether 9c:dc:71:af:fa:51 txqueuelen 1000 (Ethernet)
RX packets 51027044 bytes 14025268822 (13.0 GiB)
RX errors 0 dropped 42436 overruns 0 frame 0
TX packets 93541226 bytes 99595703403 (92.7 GiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 17
# uptime
00:27:33 up 29 days, 11:16, 21 users, load average: 6.54, 6.77, 6.95
# bc -l
bc 1.07.1
Copyright 1991-1994, 1997, 1998, 2000, 2004, 2006, 2008, 2012-2017 Free
Software Foundation, Inc.
This is free software with ABSOLUTELY NO WARRANTY.
For details type `warranty'.
42436/(29*24+11.25)
60.00141392718275008837
# ifconfig mb2|grep RX.*dropped ; sleep 60 ; ifconfig mb2|grep RX.*dropped ;
sleep 60 ; ifconfig mb2|grep RX.*dropped
RX errors 0 dropped 42442 overruns 0 frame 0
RX errors 0 dropped 42443 overruns 0 frame 0
RX errors 0 dropped 42444 overruns 0 frame 0
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