Finisar Surveyor manual Multi-QoS Performance Optimization, Call Filtering with Multi-QoS

Surveyor

User’s Guide

Setting this value to a high number may help in identifying a wider range of calls, but may also decrease performance. The default settings is recommended unless you are trying to identify non-standard or partial calls as possible.

Multi-QoS Performance Optimization

Real-time monitoring of calls is supported, but the utilization of the network will greatly affect the calls that you see in the Multi-QoS tables. The monitor function can record all calls at 10 Mbps. For 100 or 1000 Mbps networks, high network usage will result in missed packets and therefore missed calls. Note that all traffic is captured in capture mode, regardless of the network utilization.

You can increase the monitoring performance of Multi-QoS by disabling the monitoring of other statistics for a specific module.

To enable this feature from Summary View, select Configuration → Module → Settings.... Select the Modes tab and enable the check box for Monitor MQoS Only. The Multi-QoS performance option can also be set in Detail View for a specific module. Select Configuration → Settings... and select the Modes tab.

Call Filtering with Multi-QoS

Multi-QoS has a feature for quickly creating a filter from tables. Click the right mouse button on any call in the table to see the filter options supported for this type of call. This feature only works in capture mode after the analyzer is stopped.

For calls in Range Summary tables and the All Calls table, the menu has a Single Call Display Filter option. You can create and apply a display for the selected call without having to go to the filter window. This saves several steps in the filter creation process. You can also create a single call display filter from the Call Details window by clicking on Single Call Display Filter.

Return to Capture View to see the subset of packets created by applying the display filter.

The filter created through this process will filter all the internet traffic to and from the source and destination IP addresses for the selected call. The filter will collect all RAS, Q.931, and H.245 call set-up packets for this call. If the call includes a gatekeeper, these packets will be included as well.

See “Filtering on Single Channels” on page 11-29 for information on filtering channels within calls.

11-8