/CIRCUIT_TIMER[=msecs]

    Allows you to control the interval in milliseconds (msecs)
    between messages sent from the local node to other service nodes
    or terminal servers while connections to those nodes are active.
    Use this qualifier only if your node allows outgoing connections
    (/CONNECTIONS=OUTGOING_ONLY or /CONNECTIONS=BOTH).

    A low value for the interval decreases the response time for the
    port but increases the demand on service nodes. Set the circuit
    timer in the range of 10 to 1000 msecs.

    The default value of 80 msecs gives a generally acceptable
    response time while creating a moderately low overhead on the
    service nodes. You cannot change this parameter when active or
    pending LAT connections exist.