multicast_demo
----------------
A simple demo where a client sends a configurable number of messages
of configurable size to one or more servers.

Usage: client_tipc [lower [upper [kill]]]
If no arguments supplied, sends a predetermined set of multicast messages.
If optional "lower" and "upper" arguments are specified, client sends a
single message to the specified instance range; if "upper" is omitted,
it defaults to the same value as "lower".
If optional "kill" argument is specified (it can have any value), the client
sends the server termination message rather than the normal server data
message.

