This algorithm influences how the circuit resource manager
will select which line will be used for a new resource
request. first (1) does a first-fit. round (2) does a
round-robin. If first-fit is selected and the
ThresholdBandwidth parameter is non-zero, a first-fit
algorithm is done until a line reaches its threshold.
The algorithm then moves to the the next line. Once all
lines are at their threshold, the algorithm is simply
first-fit. All lines for a circuit should select the
same algorithm. If any one specifies first-fit, first-fit
will be used.