Use the TRIGGER VIA command to trigger the bootstrap  mechanism  of  a
 target  node such that the node will load itself.  Use this command to
 initiate the loading sequence for  an  unattended  system.

 This command triggers the target node via the specified circuit.   The
 target  node identification is obtained from the volatile database on
 the executor node.

 TRIGGER VIA circuit-id     SERVICE PASSWORD hex-password
                            PHYSICAL ADDRESS address

 All underscores found in parameters must be replaced with spaces
 when parameters are used in NCP commands.