NLB cluster %2]: Host %5 converged with host(s)%3. It is now an active member of the NLB cluster and will start load balancing ...

NLB cluster [%2]: Host %5 converged with host(s)%3. It is now an active member of the NLB cluster and will start load balancing traffic as the default host. The default host is the host with the lowest host priority. It handles all traffic that isn't covered by any of the defined port rules.