Created attachment 1227998 [details]
All logs and all files in /etc/sysconfig/network-scripts/

Description of problem:
One slave NIC can not be up after delete bridge0 over two slave NICs via cockpit.
Report error when enable the NIC:
Can not find a master for p4p2: Master connection not found or invalid


Version-Release number of selected component (if applicable):
redhat-virtualization-host-4.0-20161130.0
imgbased-0.8.10-0.1.el7ev.noarch
cockpit-ws-122-3.el7.x86_64
NetworkManager-1.4.0-13.el7_3.x86_64

How reproducible:
100%


Steps to Reproduce:
1. Install RHVH via interactive anaconda.
2. Reboot RHVH and login Cockpit, enter Networking page in Cockpit
3. Setup bridge0 over two NICs(such as em1 and p4p2). One NIC em1 is "on", the other NIC p4p2 is "off"
4. Delete bridge0, enable the two slave NICs

Actual results:
After step4, the slave NIC p4p2 can not be up (p4p2 was "OFF" status in bridge0), there is error report when click "ON":
Can not find a master for p4p2: Master connection not found or invalid

Expected results:
After step4, both two slave NICs should be up successful after delete bridge0

Additional info:
The ifcfg-p4p2 shows p4p2 is still slave NIC after delete bridge.

# cat ifcfg-p4p2
TYPE=Ethernet
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
NAME=p4p2
UUID=d0829b88-7b34-408f-ba9e-7ba3ad0fa849
DEVICE=p4p2
ONBOOT=yes
PEERDNS=yes
PEERROUTES=yes
BRIDGE=efd71b15-88a7-4b7d-a70e-1734f50ec35c