Polycom 3725-76302-001O Manual De Usuario

 

MCU Management

Polycom, Inc. 

150

See also: 

» Go to Network > MCU > MCU Pool Orders. 

The MCU Pool Orders list appears. 

1 Go to Network > MCU > MCU Pool Orders. 
2 In the Actions list, click Add. 
3 In the Add MCU Pool dialog box, complete editable fields. All are mandatory. See 

 on page 143. 

4 Click OK. 

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

order are displayed. 

1 Go to Network > MCU > MCU Pool Orders. 
2 In the MCU Pool Orders list, select the pool order, and in the Actions list, click Edit. 

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.