IF crsctl stat res -t gives output like below, means that the VIP failed over to node 1 from node 2
ora.swx.swxscan.svc
1 ONLINE ONLINE swxracnode1
2 ONLINE OFFLINE
ora.swxracnode1.vip
1 ONLINE ONLINE swxracnode1
ora.swxracnode2.vip
1 ONLINE INTERMEDIATE swxracnode1 FAILED OVER
Logon to Node2 and start the listener with grid user and start the listener
$ lsnrctl start