## all broadcast
$ mco rpc rpcutil ping
..
Finished processing 56 / 56 hosts in 376.04 ms

D, [2011-09-09T14:09:42.178896 #12659] DEBUG -- : activemq.rb:181:in `publish' Sending a broadcast message to ActiveMQ target '/topic/mcollective.discovery.agent' with headers '{"reply-to"=>"/topic/mcollective.discovery.reply"}
D, [2011-09-09T14:09:44.251696 #12659] DEBUG -- : activemq.rb:181:in `publish' Sending a broadcast message to ActiveMQ target '/topic/mcollective.rpcutil.agent' with headers '{"reply-to"=>"/topic/mcollective.rpcutil.reply"}

## discover by broadcast, request direct
% mco rpc rpcutil ping -I /dev2.dev/
..
Finished processing 1 / 1 hosts in 75.26 ms

D, [2011-09-09T14:10:54.768712 #12710] DEBUG -- : activemq.rb:181:in `publish' Sending a broadcast message to ActiveMQ target '/topic/mcollective.discovery.agent' with headers '{"reply-to"=>"/topic/mcollective.discovery.reply"}
D, [2011-09-09T14:10:56.780178 #12710] DEBUG -- : activemq.rb:173:in `publish' Sending a direct message to ActiveMQ target '/queue/mcollective.nodes' with headers '{"mc_identity"=>"dev2.devco.net"}