Configuring LST

This chapter describes how to configure Link State Tracking feature on the UCS Controller.

Prerequisites for Configuring LST

  • Configure UP MEP using ProvisionMepPortType template. To know more, refer creating MEP configuration.
  • Configure ccmTLV in UP MEP in LSTPortType template.

Note
While configuring UP MEP, the ports should be of same VLAN.

Understanding How Link State Tracking Works

Link-state tracking, also known as trunk failover, is a feature that binds the link state of multiple interfaces. When LST is enabled in an instance, Local SF or received 'isDown' in CCM Interface Status TLV, will bring down the residence port. Only valid in Up-MEP. The CCM rate must be 1 f/s or faster.

Configuring mepTLV

     Command or ActionPurpose
    Step 1Configure NID


    Example: 
    UCS# Configure NID 1
          		Opens a new session for NID 1.  
    Step 2LSTPortType


    Example: 
    uCS# LSTPortType
          		Enters the LST Port Type configuration mode.  
    Step 3mepTLVConfiguration


    Example: 
    UCS(LSTPortType)# mepTLVConfiguration
          		Enters mepTLVConfiguration mode.  
    Step 4ccmTLVConfigccmEnabled{enable|disable}


    Example: 
    UCS(LSTPortType)# mepTLVConfiguration
        UCS(LSTPortType)# mepTLVConfiguration ccmTLVConfig ccmEnabled enable
          		Enables or Disables ccmTLVConfig.  
    Step 5mepTLVConfigurationccmTLVConfigmepInstancemepInstance_id


    Example: 
    UCS(LSTPortType)# mepTLVConfiguration
         UCS(LSTPortType)# mepTLVConfiguration ccmTLVConfig mepInstance 1-100
          		Creates Link State Tracking Configuration at MEP instance number. The valid number is 1 to 100.  
    Step 6mepTLVConfiguration review


    Example: 
    UCS(LSTPortType)# mepTLVConfiguration review
          		Reviews the mepTLVConfiguration mode.  
    Step 7mepTLVConfiguration commit


    Example: 
    UCS(LSTPortType)# mepTLVConfiguration commit
          		Sends the mepTLVConfiguration to the NID.  
    Step 8exit


    Example: 
    UCS(LSTPortType)# exit
          		Exits the LSTPortType mode.  

    Checking ccmTLV Configuration

       Command or ActionPurpose
      Step 1Configure NID


      Example: 
      UCS# Configure NID 1
              		Opens a new session for NID 1.  
      Step 2LSTPortType


      Example: 
      UCS# LSTPortType
              		Enters LST Port Type configuration mode.  
      Step 3LinkStateTrackingConfigurationlinkStateTrackingConfigmepInstancemepInstance_id


      Example: 
      UCS(LSTPortType)# LinkStateTrackingConfiguration
        UCS(LSTPortType)# LinkStateTrackingConfiguration linkStateTrackConfig mepInstance 1-100
              		Creates Link State Tracking Configuration at MEP instance number. The valid number is 1 to 100.  
      Step 4getmepTLVConfiguration review


      Example: 
      UCS(LSTPortType)# getmepTLVConfiguration review
              		Reviews the mepTLVConfiguration mode.  
      Step 5getmepTLVConfiguration commit


      Example: 
      UCS(LSTPortType)# getmepTLVConfiguration commit
              		Sends the mepTLVConfiguration to the NID.  

      Configuring LST

         Command or ActionPurpose
        Step 1Configure NID


        Example: 
        UCS# Configure NID 1
                  		Opens a new session for NID 1.  
        Step 2LSTPortType


        Example: 
        UCS# LSTPortType
                  		Enters the LSTPortType configuration mode.  
        Step 3LinkStateTrackingConfiguration


        Example: 
        UCS(LSTPortType)# LinkStateTrackingConfiguration
                  		Enters LinkStateTrackingConfiguration mode.  
        Step 4LinkStateTrackingConfigurationlinkStateTrackingConfigmepInstancemepInstance_id


        Example: 
        UCS(LSTPortType)# LinkStateTrackingConfiguration
        UCS(LSTPortType)# LinkStateTrackingConfiguration linkStateTrackConfig mepInstance 1-100
                  		Creates Link State Tracking Configuration at MEP instance number. The valid number is 1 to 100.  
        Step 5LinkStateTrackingConfigurationlinkStateTrackingConfiglstEnabled{disable|enable}


        Example: 
        UCS(LSTPortType)# LinkStateTrackingConfiguration
        UCS(LSTPortType)# LinkStateTrackingConfiguration linkStateTrackConfig lstEnabled enable/disable
                  		Sets up LSTPortType configuration.
        • enable- Enables the LST configuration on the ports.
        • disable- Disables the LST configuration on the ports.
         
        Step 6LinkStateTrackingConfiguration review


        Example: 
        UCS(LSTPortType)# LinkStateTrackingConfiguration review
                  		Reviews the LinkStateTrackingConfiguration mode.  
        Step 7LinkStateTrackingConfiguration commit


        Example: 
        UCS(LSTPortType)# LinkStateTrackingConfiguration commit
                  		Sends the LinkStateTrackingConfiguration to the NID.  
        Step 8exit


        Example: 
        UCS(LSTPortType)# exit
                  		Exits the LSTPortType mode.  

        Checking LST Configuration

           Command or ActionPurpose
          Step 1Configure NID


          Example: 
          UCS# Configure NID 1
                      		Opens a new session for NID 1.  
          Step 2LSTPortType


          Example: 
          UCS# LSTPortType
                      		Enters the LSTPortType configuration mode.  
          Step 3getLSTConfiguration


          Example: 
          UCS(LSTPortType)# getLSTConfiguration
                      		Gets the link state tracking configuration response.  
          Step 4getLSTConfigurationmepInstancemepInstance_id


          Example: 
          UCS(LSTPortType)# getLSTConfiguration
        UCS(LSTPortType)# getLSTConfiguration mepInstance 1-100
                      		Creates Link State Tracking Configuration at MEP instance number. The valid number is 1 to 100.  
          Step 5getLSTConfiguration review


          Example: 
          v(LSTPortType)# getLSTConfiguration review
                      		Reviews the LSTConfiguration mode.  
          Step 6getLSTConfiguration commit


          Example: 
          UCS(LSTPortType)# getLSTConfiguration commit
                      		Sends the LSTConfiguration mode to the NID.  

          Viewing LST Configuration

             Command or ActionPurpose
            Step 1Configure NID


            Example: 
            UCS# Configure NID 1
                          		Opens a new session for NID 1.  
            Step 2LSTPortType


            Example: 
            UCS# LSTPortType
                          		Enters the LSTPortType configuration mode.  
            Step 3displayLSTConfiguration


            Example: 
            UCS(LSTPortType)# displayLSTConfiguration
                          		Displays the link state tracking configuration response.  
            Step 4displayLSTConfigurationmepInstancemepInstance_id


            Example: 
            UCS(LSTPortType)# displayLSTConfiguration
        UCS(LSTPortType)# displayLSTConfiguration mepInstance 1-100
                          		Displays Link State Tracking Configuration at MEP instance number. The valid number is 1 to 100.  
            Step 5displayLSTConfiguration review


            Example: 
            UCS(LSTPortType)# displayLSTConfiguration review
                          		Display the LSTConfiguration mode.  
            Step 6displayLSTConfiguration commit


            Example: 
            UCS(LSTPortType)# displayLSTConfiguration commit
                          		Displays the LSTConfiguration mode in the NID.