Finisar Surveyor 用户手册

11-6

Also, the jitter calculation for Surveyor only measures network jitter. The 
application itself may implement a jitter buffer, which could make for further 
differences between the reported RTCP jitter and the jitter measured by Surveyor.

The difference between the RTCP jitter and Surveyor-calculated jitter may provide 
some clues as to what is happening with calls where high jitter rates are disrupting 
network QoS.

Logic internal to Surveyor decodes the VoIP frames and organizes call information 
into easy-to-read graphs and tables. Configuration is not required to use the Multi-
QoS logic; however, the displays can be customized to view exactly the call 
information you want to see.

Multi-QoS is primarily configured from the 

 tab. However, there is 

some configuration for Multi-QoS that is done on a per-module basis. Module 
configuration sets up the monitoring of Multi-QoS only, effectively increasing 
Multi-QoS monitor performance. See the following subsection on performance 
optimization for a description.

The Multi-QoS

tab in Monitor mode shown below. Different options 

will be enabled/disabled in Monitor mode.