[pve-devel] Network configuration

[Martin Waschbüsch]

> Am 27.07.2015 um 20:27 schrieb Michael Rasmussen <mir at datanom.net>:
> 
> On Mon, 27 Jul 2015 20:08:24 +0200 (CEST)
> Alexandre DERUMIER <aderumier at odiso.com> wrote:
> 
>>>> eval {
>>>> ovs-vsctl add-port $bridge vlan$port tag=$port -- set interface
>>>> vlan$port type=internal
>>>> };
>> 
>> internal interface can have a random name.
>> 
> I know, but to keep it simple and IMHO more intuitive use a descriptive
> name.
> 
> 
>> also, we need to manage update. (ip modification for example).
>> we could do down, up . But it's not optimal.
> 
> How would you do it otherwise? The only way to change IP on an
> interface which is up is to bring it down first, change IP, and then
> bring it up again.

Is it?
I thought you can do

ip addr del 192.168.1.1/32 dev eth0

to remove one IPv4

or

ip addr flush dev eth0

to remove all IPs?

This way, at least, the interface is not physically down, as you only modify a single layer 3 protocol's properties.

Martin
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