public boolean isAlive(Server server) {
		    boolean isAlive = true;
		    if (server!=null && server instanceof DiscoveryEnabledServer){
	            DiscoveryEnabledServer dServer = (DiscoveryEnabledServer)server;	            
	            InstanceInfo instanceInfo = dServer.getInstanceInfo();
	            if (instanceInfo!=null){	                
	                InstanceStatus status = instanceInfo.getStatus();
	                if (status!=null){
	                    isAlive = status.equals(InstanceStatus.UP);
	                }
	            }
	        }
		    return isAlive;
		}
Non IPing interface method - only set this if you care about the "newServers Feature"
@param lb
ribbon-eureka/src/main/java/com/netflix/niws/loadbalancer/NIWSDiscoveryPing.java