This feature reports RX/TX byte statistics for host NICs and virtual machine NICS. In the Administration Portal, the Network Interfaces tab of hosts and virtual machines shows statistics for Rx Rate, Tx Rate, Total Rx, Total Tx, and Drops. The REST API (api/hosts/<host id>/nics/<nic id>/statistics) returns statistics for data.current.rx, data.current.tx, data.total.rx, data.total.tx, errors.total.rx, and errors.total.tx. The drops/errors statistics allow you to check the NIC's health and avoid errors associated with NICs experiencing network issues.
Created attachment 956204[details]
Workaround to poll cumulative VM network usage via Python SDK
Explained how this works (as well as limitations of the script) on the users mailing list.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://rhn.redhat.com/errata/RHEA-2016-0376.html