Got a little bit furtherTurned on stp for this vmbr and now VM gets traffic for about 10-15 seconds and then no packet flow again.
Note that packets are going from VM to (for example) DHCP server, but they will get lost on their way back. They will arrive at the eth5 and vmbr, but not to tap, which is connected to the VM by qemu.
Tried to upgrade Intel X710 firmware as well, no luck there. Not to mention the drivers small upgrade which I already did yesterday.
On 15.04.15 22:03, Sten Aus wrote:
Thanks for the tip, but this was not the case. On 15.04.15 21:24, Michael Rasmussen wrote:On Wed, 15 Apr 2015 21:01:35 +0300 Sten Aus <[email protected]> wrote:Coworker did a lot of tcpdumps during the day and it appears the VM tap device is not getting ARPs back. I mean this tap device what qemu brings up/makes.What does tcpdump disclose running on host and in VM? On host tcpdump -i vmbr10A long shot. Try to disable hardware checksum offload since it is know to cause problems in virtualized environments. You can try with ethtool before making permanent changes: ethtool -K eth5 tx off If that works you could add it permanently to udev: Create this file: /etc/udev/rules.d/81-bridge.rules With the following content: ACTION=="add", SUBSYSTEM=="net", NAME=="vmbr*", RUN+="/sbin/ethtool -K $env{INTERFACE} tx off"_______________________________________________ pve-user mailing list [email protected] http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
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