Comment 2 for bug 1754484

here is another example:

https://pastebin.canonical.com/p/jv22Sm8BFq/

All of the fabrics/vlans in that dump were created automatically.

All of the vlans belong to the same fabric - we don't reuse vlan ID's in
our organization, so we have no need for vlan namespaces. They are all
connected to the same set of switches.