OneSight Administrator Guide

Configuring OneSight Virtual Agent Monitors
6. Enter the XML as described below.
7. Click OK.
The State Machine
The state machine lets you define a set of control branch points, or
states. These states are named by you. OneSight provides the
following pre-defined states to which you can add transitions:
START – This is the initial state for the virtual agent. It waits in
this state until it receives its first input, generally a login prompt.
END – This state has no outbound transitions. If another state
transitions to the END state, then the state machine is ended, and
the virtual agent sends commands and receives unprocessed
responses.
Transitions – Each state has a set of rules or transitions associated
with it. These transitions define what the agent will do given a
specific response or prompt from the remote system. A transition is
defined by a triple . This
means that if the data received from the remote system matches the
specified input pattern, then send the output string, and proceed to
the state specified by next state. If two transitions have overlapping
regular expressions, then the state machine picks the first transition
that matches the input data.
Input pattern – The input pattern is a perl style regular expression. If
the expression is matched, the transition is executed. If more than
one transition’s input pattern matches the same input, the result is
non-deterministic, that is only one transition will trigger, not both.
Output string – The output string is a string send via the telnet/ssh
channel to the remote system upon matching a transition. The
%username% and %password% substitution variables can be used to
fill in the user name and password fields.
368 OneSight Administrator Guide