Polycom 3725-76302-001O manual MCU Pool Order Procedures, To view the MCU Pool Orders list

MCU Management

Note: Calculating MCU Reliability

After each call, the RealPresence DMA system recalculates the reliability of an MCU as the weighted average of the result for the current call (1 for success, 0 for failure) and the reliability of all previous calls, using this formula:

reliability = (current_call + (weight * previous_reliability)) / (1 + weight)

For example, if weight is 5, previous reliability is 1 (no previous failed calls), and the call is successful, the reliability remains 1:

(1 + (5 *1)) / (1 + 5) = 1

If weight is 5, previous reliability is 1, and the call fails, the reliability becomes 5/6:

(0 + (5 *1)) / (1 + 5) = 5/6

If weight is 5, previous reliability is 5/6, and the call is successful, the reliability becomes 31/36:

(1 + (5 *5/6)) / (1 + 5) = 31/36

If the reliability is ever less than 1, it exponentially approaches 1 as more calls succeed, but it never quite gets there. It very quickly reaches the point where the weight of the past failed call counts less than a single call in progress. But it remains as the tie breaker between completely unused MCUs forever.

See also:

MCU Pool Orders on page 145

MCU Selection Process on page 147

MCU Pool Order Procedures on page 150

MCU Pool Order Procedures

To view the MCU Pool Orders list

»Go to Network > MCU > MCU Pool Orders. The MCU Pool Orders list appears.

To add an MCU Pool Order

1Go to Network > MCU > MCU Pool Orders.

2In the Actions list, click Add.

3In the Add MCU Pool dialog box, complete editable fields. All are mandatory. See Add MCU Pool Dialog Box on page 143.

4Click OK.

The new MCU pool order appears in the MCU Pool Orders list. The MCU pools included in the pool order are displayed.

To edit an MCU Pool Order

1Go to Network > MCU > MCU Pool Orders.

2In the MCU Pool Orders list, select the pool order, and in the Actions list, click Edit.

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