On Tue, Mar 19, 2019 at 08:46:47AM -0700, Stephen Hemminger wrote:
> On Tue, 19 Mar 2019 14:38:06 +0200
> Liran Alon <liran.a...@oracle.com> wrote:
> > b.3) cloud-init: If configured to perform network-configuration, it 
> > attempts to configure all available netdevs. It should avoid however doing 
> > so on net-failover slaves.
> > (Microsoft has handled this by adding a mechanism in cloud-init to 
> > blacklist a netdev from being configured in case it is owned by a specific 
> > PCI driver. Specifically, they blacklist Mellanox VF driver. However, this 
> > technique doesn’t work for the net-failover mechanism because both the 
> > net-failover netdev and the virtio-net netdev are owned by the virtio-net 
> > PCI driver).
> Cloud-init should really just ignore all devices that have a master device.
> That would have been more general, and safer for other use cases.

Given lots of userspace doesn't do this, I wonder whether it would be
safer to just somehow pretend to userspace that the slave links are
down? And add a special attribute for the actual link state.

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