An HP Comware switch is controlled by a team of HP VAN SDN Controllers. The controllers have these roles
within the region that contains the switch.
Controller 1 = Master
Controller 2 Primary slave
Controller 3 =Secondary slave
A failed network connection causes Controller 1 to lose contact with the switch. Controller 2 and Controller 3
can still reach all the controlled devices. Controller 1 is still up and has contact with other controllers and
switches. How does the team handle this situation?

A.
Controller 1, as master, contacts OpenFlow-enabled devices near the switch and attempts to repair the
connection.

B.
Controller 2 becomes the master for this switch, although Controller 1 remains master for other switches.

C.
Controller 1, as master, removes the switch from any active flows and sends updated flows to Controller 2
andController 3.

D.
Controller 2 becomes the master for all switches in the region, and Controller 1 becomes the primary slave
for the region.

Explanation:
http://h22208.www2.hpe.com/eginfolib/networking/docs/sdn/sdnc2_6/5998-8472admin/content/s_curl-teamconfig.html#s_region-failover