Configure the PM session framework

Click Tools→Service Test Manager (STM) on the NFM-P main menu. The Service Test Manager (STM) form opens.

Click Create→Performance Monitoring→PM Session or select an existing PM session and click Properties. The PM Session (Create|Edit) form opens.

Note: A bin group with ID 1 must exist before you can create a PM session. See To configure a PM bin group policy for information about creating bin groups.

Configure the required parameters.

If you configure the Test Family Type as IP, then you can also select an existing TCC test in the TWAMP panel. See To configure a TCC OAM diagnostic test from the STM for information on configuring a TCC test.

Select a System ID in the Network Element panel.

If you are creating a PM session from a Routing Instance form, the Network Element System ID is automatically populated.

Select a Bin Group policy in the Bin Group panel.

Depending on the Test Family Type selected in Step 3, perform one of the following:

1. Click on the Ethernet Session tab.

   1. Configure the Priority parameter.

   2. Select a Maintenance Entity Group ID in the Source (Controller) MEP information panel.

   3. Choose an originating MEP using the ID Select button.

   4. In the Destination (Responder) MEP information panel, choose one of the following for the service destination test endpoint:

   • Select a MEP, MIP, or Unmanaged MEP for the Target MAC Address parameter.

     Note: You must select a Maintenance Entity Group ID and Originating MEP prior to configuring this parameter for the Select buttons to function.

   • Click the Enable Target MEP ID checkbox if you want to specify a remote Maintenance Entity Point ID (MEP ID) endpoint.

     Note: With both options, you have the choice to either enter a value manually for the Target MEP ID or Target MAC Address parameter or use the selected value.

2. Click on the IP Session tab.

   1. Configure the IP Session Target Type parameter. If you select the VPRN Service option, you must also select a VPRN service for the selected NE.

      If you are creating a PM session from a VPRN service form, the Service ID is automatically populated. If the PM session is created from the VPRN site context, the Network Element System ID, IP Session Target Type, and VPRN Service ID parameters are automatically configured.

   2. Select source and destination IP addresses in the Source and Destination Addresses panel.

      The source IP and destination IP addresses are required to create a working TWAMP Light or TCC test. The source IP address is selected from a list of IP addresses on the NE specified in the VPRN service or routing instance. The destination IP address is selected from all IP addresses that are not configured on the NE in the VPRN service or routing instance. The destination IP address and destination UDP port specify the location of the TWAMP Light reflector that a TWAMP Light test will use. See To configure a TWAMP Light reflector for information on creating TWAMP reflectors.

      If you are creating the TWAMP Light or TCC test from a service topology map, the OAM option must be enabled in the map. Selecting two L3 access interfaces automatically populates both the Source IP and Destination IP fields, based on the SAPs you select. Selecting just one SAP populates only the Source IP field.

   3. Configure the required parameters in the Session Details panel.

      The Bypass Routing, Egress IF Name, and Next Hop IP parameter are used to determine what kind of forwarding is used. You can only configure one of these parameters.

      The Source UDP Port parameter should only be specified when configuring the PM session for use in a PM TCC test.

      The DSCP Name, DSCP Egress Remark, Do Not Fragment, Use Pattern, Tunnel, and Mpls Tunnel parameters are specified when configuring the PM session for use in a TWAMP Light session test.

3. Click on the MPLS Session tab.

   1. Configure the LSP Type parameter.

      The panels and parameters that appear vary depending on the LSP Type selected.

   2. Select an LSP in the resulting panel.

      MPLS-TP Static LSPs are bidirectional and allow forward, backward, and round-trip delay metric calculation.

      RSVP and RSVP Auto LSPs require configuration of the Return Address parameter.

   3. Configure the parameters in the Details panel.

      The Force Enable MPLS-DM parameter automatically enables transmission of test frames on test NEs, and reflection of test frames on supported destination NEs. If you do not enable the Force Enable MPLS-DM parameter, you must manually enable the MPLS-DM Admin Status parameter on the NE properties form; see To configure an MPLS DM session OAM diagnostic test from the STM.

Click Apply.

Configure and enable the PM session tests

Click on the Components tab.

1. Right-click the Measurement Intervals item and select Create Measurement Interval. The Measurement Interval form opens.

   A PM session test will record results information to a “raw” bin by default. This is a measurement interval with infinite duration. However, one or more finite measurement intervals may also be configured for the same PM session and associated tests. Measurement intervals can be configured as 5 minutes, 15 minutes, 1 hour, or 1 day in length. If you create more than one measurement interval, the Interval Duration must be different for each one.

2. Configure the required parameters.

   The Enable events, Delay Events, and Loss Events parameters are required to collect TCA event statistics. The Loss Events parameter is not configurable for MPLS DM tests.

3. Select an accounting policy.

Perform one of the following:

1. If you configured the Test Family parameter in Step 3 for Ethernet, right-click the Test Sessions icon and select one of the following tests from the contextual menu:

   • Create CFM DMM Test Session. Perform To configure a CFM DMM session OAM diagnostic test from the STM .

   • Create CFM SLM Test Session. Perform To configure a CFM SLM session OAM diagnostic test from the STM .

   • Create CFM LMM Test Session. Perform To configure a CFM LMM session OAM diagnostic test from the STM .

   You can create one of each type of these Ethernet tests for a single PM session.

2. If you configured the Test Family parameter in Step 3 for IP, right-click the Test Sessions icon, select Create TWAMP Light Test Session, and perform To configure a TWAMP Light session OAM diagnostic test from the STM .

3. If you configured the Test Family parameter in Step 3 for MPLS, right-click the Test Sessions icon, select Create MPLS DM Test Session, and perform To configure an MPLS DM session OAM diagnostic test from the STM.

Save your changes and close the PM Session form.

If the Administrative State of either or both of the test sessions is set to Enabled, the tests will begin to execute automatically when the changes are applied. They continue to run until manually stopped.

Additional operations

To stop a test from running, select the test in the STM’s PM Session Test (Assurance) list and click Stop Execution. You can also set the Administrative State of a test session to Disabled.

To include a PM session in a test policy, perform To configure an STM test policy .

To include a PM session in a test suite, perform To create an STM test suite .

End of steps