Hi Patrick,

quoted

so I was playing with monitoring network device statistics and storing
them over a period of time. While netlink and ethtool provides all the
network packet statistics, I have a problem with devices that are
actually hotplug. Especially 3G cards that get taken off the bus via
RFKILL and external dongles that can be unplugged at any time.

So I was thinking that before we send the DELLINK netlink event for that
interface, we should send the latest statistic details via netlink. Is
that a good idea or is there another way to get up-to-date statistics
without polling for them?

Don't we already include them in the DELLINK message? rtnl_fill_ifinfo()
unconditionally includes the statistics.

you are correct. We already have the IFLA_STATS in DELLINK. I got
confused with ip monitor not decoding these and assumed they were not
included at all.

Regards

Marcel