In "Edit Logical Network" dialog (Data Center main-tab -> Logical Networks sub-tab): - the "Detach ALL Clusters" button on the right-hand side of the dialog doesn't seem to do anything - in case the network is assigned to Cluster(s) on the right-hand side of the dialog, the "VM Network" and "Override MTU" fields should be disabled (just like the rest of the fields on the left-hand side of the dialog), otherwise if there aren't any Clusters selected, the fields should be enabled again
Submitted patch [http://gerrit.ovirt.org/4343]
closing ON_QA bugs as oVirt 3.1 was released: http://www.ovirt.org/get-ovirt/