When you stop latd all users are instantly disconnected. They will get no warning and work will not be saved. Service names latd can advertise many services, not just one for the host name. This tells latd to advertise the new service along with the default one using the same rating. The description is added to the service with the -i switch.
Every advertised service has a rating associated with it.
This rating is used in the terminal servers' load balancing algorithm to determine which node to connect to when more than one system advertises the same service name. By default, services advertised by latd have dynamic ratings, that is they vary according to the load on the system. If you have several machines advertising the the same service then, to achieve effective load balancing, the rating specified on the command-line should reflect the relative power of the machines offering that service. In addition, ratings can be static . A static rating does not vary with the system load average.