- Containers sporadically lose network connectivity for a short amount of time (~5-10 minutes) and restore accessibility afterwards.
- There are several VLANs (e.g. eth0.142, eth0.181, eth0.192) configured on the main network interface.
- Traffic shaping is enabled on the server.
The default VZ traffic shaping settings imply the usage of eth0 interface, however with VLANs configured, it is necessary to reconfigure it to include the tagged interfaces.
Correct the BANDWIDTH traffic shaping parameter:
# grep BANDWIDTH /etc/vz/vz.conf BANDWIDTH="eth0:1000000"
# grep BANDWIDTH /etc/vz/vz.conf BANDWIDTH="eth0.142:1000000 eth0.181:1000000 eth0.192:1000000"
Restart the traffic shaper afterwards:
# service vz shaperrestart