Comment 14 for bug 1853047

Sorry, I think I misunderstood how FCE did things. I think it would be good to get a detailed explanation about what happens with regards to VLAN 2696 and its related subnet. I.e. whether VLANs/Fabrics/Subnets are created, or gotten from MAAS.

It's important to know that MAAS will most likely have seen the eno2.2696 interfaces and will have created a Fabric, a VLAN, and a Subnet. I see that in the logs, you create your own fabric, and I think that's where things go wrong. I wonder if you shouldn't try to detect whether MAAS already has a fabric for any of the vlans and subnets in network.yaml and try to reuse that.

I think that would cause less problem, since if you take a VLAN that MAAS has connected to a subnet and interface and moves it to another fabric, it's not clear what will happen when MAAS goes over the rack network interfaces again.