Looking for reasons stated that vnstat daemon (runs) does not know whether to initiate an interface has enabled monitoring.
The error was a typo contained in the vnstat_ip-up files in the /etc/sysconfig/network-scripts/ifup.d/ vnstat_ip-down and in /etc/sysconfig/network-scripts/ifdown.d/. In both files in a row instead of <if no.4 ["a$ACCOUNTING" = "ayes" ]; then>
should be <if ["a $ ACCOUNTING" = "yes"] then>.
After removing the 'a' vnstat correctly detected on the interface and writes the data to the database.
Similar errors are found in the package scripts net_monitor.
Typos are netmonitor_up files in the /etc/sysconfig/network-scripts/ifup.d/ and netmonitor_down in /etc/sysconfig/network-scripts/ifdown.d/.
After removing redundant 'a' Network Monitor shows traffic statistics correctly on interfaces for configuring the monitor turned on the option.
Errors in packets and net_monitor vnstat are in Mga1, Mga2 and repository for Mga3 cauldron (yet appeared in Mandriva).
Repair is particularly important for those using the links at the limit of data transfer.
The same situation (the remainder of Mandriva) is 01_network file in the /etc/netprofile/modules/ nr20 line is probably a typo.
Instead of /etc/resonvconf/ should probably be /etc/resolvconf/. 01_network file is packaged netprofile-plugin-network.
Can someone confirm these errors and report them if necessary. See PS

PS
Sorry for the spelling, post translated by google translate.