HP HPE VAN SDN Controller 2.7 Administrator's Manual page 190

In this example, the master controller 172.17.6.70 fails. Although it is still in the region, it is
unavailable to the devices for which it is the configured master and is no longer the master
controller. The primary slave controller 172.17.6.71 becomes the master controller. All 5
devices 192.168.1.101–105 now belong to the failover master controller 172.17.6.71.
Example command
curl --noproxy teamIp --header "X-Auth-Token:token"
https://teamIp:8443/sdn/v2.0/owners/region-uid/state?dataPathDetails=yes
Example output
{
"regions":[
{
"uid":"713def9a-4f96-485f-990c-8924bc06c8d8",
"name":"Region-Red",
"prioritizedControllerIps":[
],
"devices":[
190 curl commands
"172.17.6.70",
"172.17.6.71",
"172.17.6.72"
{
"deviceIp":"192.168.1.101",
"owningControllerIp":"172.17.6.71",
"dataPaths":[
{
"dpid":"00:01:44:31:92:5c:af:86",
"owningControllerIp":"172.17.6.71"
}
]
},
{
"deviceIp":"192.168.1.102",
"owningControllerIp":"172.17.6.71",
"dataPaths":[
{
"dpid":"00:1e:c8:cb:b8:dd:f0:c0",
"owningControllerIp":"172.17.6.71"
}
]
},
{
"deviceIp":"192.168.1.103",
"owningControllerIp":"172.17.6.71",
"dataPaths":[
{
"dpid":"00:1e:f0:92:1c:21:af:00",
"owningControllerIp":"172.17.6.71"
}
]
},
{
"deviceIp":"192.168.1.104",
"owningControllerIp":"172.17.6.71",
"dataPaths":[
{
"dpid":"00:01:cc:3e:5f:6b:19:00",
"owningControllerIp":"172.17.6.71"
}
]
},
{
"deviceIp":"192.168.1.105",
"owningControllerIp":"172.17.6.71",
-ksS --request GET --url