Den 16 maj 2019 19:17 skrev Magnus Isaksson :Hello@strahil The packet drops are frequent, every time i run "ip -s link" on the guest there is new dropped packets, on the hosts it says "0" and in oVirt it says "0".I can run tcpdump on hosts and guests, but i don't know how to capture the dropped
Hello
@strahil
The packet drops are frequent, every time i run "ip -s link" on the guest there
is new dropped packets, on the hosts it says "0" and in oVirt it says "0".
I can run tcpdump on hosts and guests, but i don't know how to capture the
dropped packets with tcpdump.
There are no RX
Check your host for dropped packets as well. I had found that some of my older
10G cards were setting smaller buffers than they could, and using ethtool to
set tx and rx buffers to their max values significantly improved things for
those cards. And look at your switch to be sure it/they are not
Hi Magnus,
I've had a bad **virtual** network card three times in the last five
years. Yes it' possible.
I my case, NFS services didn't work as expected, but other services were ok.
Today if this would happen again, i unplug and replug the VM nic. Like:
Hi Magnus,
do you notice any repetition there ? Does it happen completely random ?
Usually to debug network issues you will need tcpdump from Guest, Host and the
other side if possible.Is that an option ?
Do you see in the host's tab those RX errors ?
What is the output of "ip -s link" on the
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