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[Édouard Thuleau <thuleau@xxxxxxxxx>]

Hi all,

I use nova-network with VLAN manager.

Why nova-network doesn't remove unused network interfaces on a host ?

ie, if none VM on a host have a fixed IP attach to network X, the VLAN
and bridge of this network still up and unused. And 'dnsmasq' process
still listen and running.

The number of unused network interfaces will grow over time.
In the VLAN mode, this number could be 4000 x 2 unused interfaces and
4000 unused 'dnsmasq' processes (in worth case).

Can it lead to decrease the kernel performance ?
Is it a bug ? Or a voluntary implementation ?

Regards,
Édouard.