Long vsmId = 0L;
if(vsmIp != null && vsmUser != null && vsmPassword != null) {
NetconfHelper netconfClient;
try {
netconfClient = new NetconfHelper(vsmIp, vsmUser, vsmPassword);
netconfClient.disconnect();
} catch (CloudRuntimeException e) {
String msg = "Invalid credentials supplied for user " + vsmUser + " for Cisco Nexus 1000v VSM at " + vsmIp;
s_logger.error(msg);
_clusterDao.remove(clusterId);
throw new CloudRuntimeException(msg);