Signaling Packet Capture Tool tip

The Signal Packet Capture tool can potentially cause a Link Detection Group (LDG) failure due to how the tool manipulates the NIC and associated NP rules. To avoid this, Ribbon recommends to increase the LDG timer values.

  • Response Timer—Double the response timer to 1000 ms (from 500 ms).
  • Retries—Increase the retry count by 1 (default is 3).

Additionally, you can increase the LDG's threshold value to 2 (default) so that even if an echo response is delayed and the link monitor fails, the LDG does not go into a failed state and attempt to trigger a switchover upon an initial failure.


Use the Signaling Packet Capture window to configure the Signaling Packet Capture utility. Signaling Packet Capture data is stored in a ".PKT" file in the location: /var/log/sonus/evlog/evlog

Note

This utility is intended for use in debugging and should only be used with a limited number of calls at any one time. 

On the SBC main screen, go to Troubleshooting > Troubleshooting Configuration > Call Trace > Signaling Packet Capture.

The Signaling Packet Capture window is displayed.

Troubleshooting - Call Trace - Signaling Packet Capture

 

Use the following table to edit the fields and then click Save.

Signaling Packet Capture Parameters

Parameter Description
Signaling Packet Capture TimerThe signaling packet capture timer, in minutes, for both call and error trace filters. The value ranges from 0 to 360 minutes, with a default value of 180.
State

Use this flag to enable/disable signaling packet captures by enabling/disabling the timer.

  • Disable (default)
  • Enable
Note

In the absence of any device or filter configuration, the Signaling Packet Capture feature only captures SIP/H.323 signaling for calls which are traced by Call Trace Filters.

Before making any change in the filter or applying new filter, change to Disable state. Once the filter is changed/applied, enable it.


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