To configure a TWAMP server

Before you begin

You can enable or disable Two-Way Active Measurement Protocol on a server and view session and connection statistics.

Note: You cannot configure a TWAMP server after an NE upgrade until the NE is fully resynchronized.

Steps
 
1 

On the equipment tree, right-click on an NE and choose Properties. The Network Element (Edit) form opens.

2 

Click on the Globals tab. The Load Balancing tab is displayed.

3 

Click on the OAM tab and scroll to the OAM TWAMP panel.

4 

Configure the Administrative Status parameter.

Note: To make changes to TWAMP server parameters, the Administrative Status parameter must be set to Disabled.

If you are configuring a 7705 SAR, Release 6.1 R5 or later, you can modify the TWAMP prefix Description parameter when the Administrative Status parameter is set to Enabled.

5 

Configure the required parameters in the Server Configuration panel.

6 

If you are configuring a 7705 SAR, the Reflector Configuration panel is displayed.

Expand the Reflector Configuration panel and configure the Reflector Test Session Timeout (Seconds) parameter.

7 

Configure the required parameters in the Time stamping Configuration panel.

8 

Click on the Prefix tab.

9 

Perform one of the following:

  1. Click Create to add a new prefix. The Prefix TWAMP Server (Create) form opens, with the General tab displayed.

    Note: The NFM-P allows you to create an unlimited number of prefixes. However, an NE can only accept a maximum of 100 prefixes. If more than 100 prefixes are created in the NFM-P, the affected NE will issue a deployment error.

  2. Select an existing prefix and click Properties. The Prefix TWAMP Server (Edit) form opens, with the General tab displayed.

10 

Configure the required parameters.

11 

Click on the Statistics tab.

12 

Select either Srv Conns Stats (Assurance) or Prefix Srv Stats (Assurance), as required, from the Select Object Type drop-down menu.

13 

Select either Past 4 Hour(s) or No Filter, as required, from the filter selector.

14 

Click Statistics Policies and select Statistics Policy from the menu. The Statistics Policy form opens, with the General tab displayed.

15 

Configure the required parameters.

16 

Click on the Thresholds tab.

17 

Perform one of the following, depending on your selection in Step 12 .

  1. Configure the Prefix Srv Stats (Assurance) threshold parameters.

  2. Configure the Srv Conns Stats (Assurance) threshold parameters.

18 

Save your changes and close the forms.

19 

To view TWAMP statistics on a server:

  1. Perform Step 1 to Step 3 of this procedure.

  2. Click on the Prefix tab.

  3. Select either Srv Conns Stats (Assurance) or Prefix Srv Stats (Assurance), as required, from the Select Object Type drop-down menu.

  4. Select either Past 4 Hour(s) or No Filter, as required, from the filter selector.

  5. Click Collect or Collect All. The system compiles the statistics and displays the available records in the table.

    Note:

    The objects listed in the table control the behavior of the TWAMP connections that match the defined IP prefix.

  6. Select the required record from the table and click Properties. The Statistics Record is displayed.

  7. Save your changes and close the forms.

End of steps