Configuring UDLD

This document describes the Unidirectional Link Detection (UDLD) feature and configuration steps to implement UDLD.

Prerequisites for Configuring UDLD

  • To identify and disable the unidirectional links, devices at both ends must support UDLD.

  • UDLD Hello packet timers must be same for both the devices.

  • NID must have an IP address.

Restrictions for Configuring UDLD

  • Access Control Lists (ACLs) cannot be used to block the UDLD traffic.

  • UDLD on ME 1200 NID cannot interoperate with other devices. UDLD can be enabled only between ME 1200 NIDs.

Information About UDLD

UDLD is a Layer 2 protocol that enables devices connected through Ethernet cables to monitor the physical configuration and detect presence of a unidirectional link. A unidirectional link occurs when traffic sent by a local device is received by its neighbor but traffic coming from the neighboring device is not received by the local device. When a unidirectional link is detected, the affected port is disabled and user is alerted. This can help prevent spanning tree topology loops.

UDLD supports two operation modes:
  • Normal—In this mode, UDLD detects a unidirectional link due to misconnected fibers on a fiber-optic link that is not detected by Layer 1 mechanisms.

    Note

    If port connections are correct and traffic is one way, UDLD does not detect the unidirectional link. In this case, no action is taken and link is considered undetermined.

  • Aggressive—In this mode, unidirectional link due to one-way traffic on fiber-optic and twisted pair links, and misconnected ports on fiber-optic links can be detected. Specifically, if one end of the link cannot send or receive traffic, or one of the ports is down and the other is up, the unidirectional link can be detected. Using the loss of hello packets as indication to detect bi-directional link that cannot be re-established, UDLD disables the affected port.

In addition, UDLD can detect the identities of neighbors by caching the information contained in UDLD hello packet.

By default, UDLD is disabled on ME 1200 NID. The normal or aggressive mode can be

  • enabled globally on all ports or

  • enabled or modified on the individual ports

How to Provision UDLD

Enabling UDLD Mode Globally

     Command or ActionPurpose
    Step 1ConfigureNID


    Example: 
    UCS# Configure NID 1
     

    Opens a new session for NID 1.

     
    Step 2UDLDPortType


    Example: 
    UCS# UDLDPortType
          		Enters the UDLD mode.  
    Step 3udldGlobalConfig {mode {normal | aggressive} | message_interval}


    Example: 
    UCS(UDLDPortType)# setGlobalUDLDConfig udldGlobalConfig mode normal enable
UCS(UDLDPortType)# setGlobalUDLDConfig udldGlobalConfig message_interval 10
     

    Enters UDLD global configuration mode.

    Sub-command options:
    • mode—Specifies UDLD configuration mode.
      • normal—Enables UDLD in normal mode on all fiber-optic ports.
      • aggressive—Enables UDLD in aggressive mode on all fiber-optic ports.
    • message-interval—Specifies time interval between UDLD probe messages on ports (7-90 seconds).
     
    Step 4setGlobalUDLDConfig review


    Example: 
    UCS(UDLDPortType)# setGlobalUDLDConfig review
          		(Optional) Displays the configuration.  
    Step 5setGlobalUDLDConfig commit


    Example: 
    UCS(UDLDPortType)# setGlobalUDLDConfig commit
          		Sends the configuration to NID.  
    Step 6exit


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

    Configuration Example

    • The example shows how to enable UDLD globally in normal mode: 

      UCS# UDLDPortType
UCS(UDLDPortType)# setGlobalUDLDConfig udldGlobalConfig mode normal enable
UCS(UDLDPortType)# setGlobalUDLDConfig udldGlobalConfig message-interval 10 
UCS(UDLDPortType)# setGlobalUDLDConfig review
      Commands in queue:
        setGlobalUDLDConfig udldGlobalConfig mode normal enable 
        setGlobalUDLDConfig udldGlobalConfig message_interval 10 
      UCS(UDLDPortType)# setGlobalUDLDConfig commit
       SetGlobalUDLDConfig Commit Success!!!
      UCS(UDLDPortType)# exit

    This enables UDLD on all ports of ME 1200 NID with a time interval of 10 seconds.

    Disabling UDLD Mode Globally

       Command or ActionPurpose
      Step 1ConfigureNID


      Example: 
      UCS# Configure NID 1
       

      Opens a new session for NID 1.

       
      Step 2UDLDPortType


      Example: 
      UCS# UDLDPortType
              		Enters the UDLD mode.  
      Step 3udldGlobalConfig {mode {normal | aggressive} | message-interval}


      Example: 
      UCS(UDLDPortType)# setGlobalUDLDConfig udldGlobalConfig mode normal disable
       

      Enters UDLD global configuration mode.

      Sub-command options:
      • mode—Specifies UDLD configuration mode.
        • normal—Enables UDLD in normal mode on all fiber-optic ports.
        • aggressive—Enables UDLD in aggressive mode on all fiber-optic ports.
      • message-interval—Specifies time interval between UDLD probe messages on ports. The valid range is from 7 to 90 seconds.
       
      Step 4setGlobalUDLDConfig review


      Example: 
      UCS(UDLDPortType)# setGlobalUDLDConfig review
              		(Optional) Displays the configuration.  
      Step 5setGlobalUDLDConfig commit


      Example: 
      UCS(UDLDPortType)# setGlobalUDLDConfig commit
              		Sends the configuration to NID.  
      Step 6exit


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

      Configuration Example

      • The example shows how to disable UDLD globally in normal mode: 

        UCS# UDLDPortType
UCS(UDLDPortType)# setGlobalUDLDConfig udldGlobalConfig mode normal disable
UCS(UDLDPortType)# setGlobalUDLDConfig review
        Commands in queue:
        setGlobalUDLDConfig udldGlobalConfig mode normal disable
        UCS(UDLDPortType)# setGlobalUDLDConfig commit
         SetGlobalUDLDConfig Commit Success!!!
        UCS(UDLDPortType)# exit

      This disables UDLD on all ports of ME 1200 NID.

      Enabling UDLD Mode on a Port

         Command or ActionPurpose
        Step 1ConfigureNID


        Example: 
        UCS#Configure NID 1
         

        Opens a new session for NID 1.

         
        Step 2UDLDPortType


        Example: 
        UCS# UDLDPortType
                  		Enters the UDLD mode.  
        Step 3udldInterfaceConfig {mode {enable | aggressive} | message-interval seconds | port port number}


        Example: 
        UCS(UDLDPortType)# setIntfUDLDConfig udldInterfaceConfig mode aggressive enable
UCS(UDLDPortType)# setIntfUDLDConfig udldInterfaceConfig message_interval 20 
UCS(UDLDPortType)# setIntfUDLDConfig udldInterfaceConfig port 3
         

        Enters UDLD global configuration mode.

        Sub-command options:
        • mode—Specifies UDLD configuration mode.
          • enable—Enables UDLD in normal mode on selected interface.
          • aggressive—Enables UDLD in aggressive mode on selected interface.
        • message-interval—Specifies time interval between UDLD probe messages on ports.
          • seconds—Time interval in seconds. Valid range is from 7 to 90 seconds.
        • port—Specifies targeted interface.
          • port number—Specifies number of the selected port.
         
        Step 4setIntfUDLDConfig review


        Example: 
        UCS(UDLDPortType)# setIntfUDLDConfig review
                  		(Optional) Displays the configuration.  
        Step 5setIntfUDLDConfig commit


        Example: 
        UCS(UDLDPortType)# setIntfUDLDConfig commit
                  		Sends the configuration to NID.  
        Step 6exit


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

        Configuration Example

        • The example shows how to enable UDLD on a specific port in an aggressive mode: 

          UCS# UDLDPortType
UCS(UDLDPortType)# setIntfUDLDConfig udldInterfaceConfig mode aggressive enable
UCS(UDLDPortType)# setIntfUDLDConfig udldInterfaceConfig message_interval 20 
UCS(UDLDPortType)# setIntfUDLDConfig udldInterfaceConfig port 3
UCS(UDLDPortType)# setIntfUDLDConfig review
          Commands in queue:
        UCS(UDLDPortType)# setIntfUDLDConfig udldInterfaceConfig mode aggressive enable
        UCS(UDLDPortType)# setIntfUDLDConfig udldInterfaceConfig message_interval 20 
        UCS(UDLDPortType)# setIntfUDLDConfig udldInterfaceConfig port 3 
          UCS(UDLDPortType)# setIntfUDLDConfig commit
           SetIntfUDLDConfig Commit Success!!!
          UCS(UDLDPortType)# exit

        This enables UDLD in aggressive mode only on port 3 of ME 1200 NID with a time interval of 20 seconds.

        Disabling UDLD Mode on a Port

           Command or ActionPurpose
          Step 1ConfigureNID


          Example: 
          UCS# Configure NID 1
           

          Opens a new session for NID 1.

           
          Step 2UDLDPortType


          Example: 
          UCS# UDLDPortType
                      		Enters the UDLD mode.  
          Step 3udldInterfaceConfig {mode {enable | aggressive} | message-interval seconds | port port number}


          Example: 
          UCS(UDLDPortType)# setIntfUDLDConfig udldInterfaceConfig port 3
UCS(UDLDPortType)# setIntfUDLDConfig udldInterfaceConfig mode aggressive disable
           

          Enters UDLD port specific configuration mode.

          Sub-command options:
          • mode—Specifies UDLD configuration mode.
            • enable—Enables UDLD in normal mode on selected interface.
            • aggressive—Enables UDLD in aggressive mode on selected interface.
          • message-interval—Specifies time interval between UDLD probe messages on ports.
            • seconds—Time interval in seconds. Valid range is from 7 to 90 seconds.
          • port—Specifies targeted interface.
            • port number—Specifies number of the selected port.
           
          Step 4setIntfUDLDConfig review


          Example: 
          UCS(UDLDPortType)# setIntfUDLDConfig review
                      		(Optional) Displays the configuration.  
          Step 5setIntfUDLDConfig commit


          Example: 
          UCS(UDLDPortType)# setIntfUDLDConfig commit
                      		Sends the configuration to NID.  
          Step 6exit


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

          Configuration Example

          • The example shows how to disable UDLD on a specific port in an aggressive mode: 

            UCS# UDLDPortType
UCS(UDLDPortType)# setIntfUDLDConfig udldInterfaceConfig port 3
UCS(UDLDPortType)# setIntfUDLDConfig udldInterfaceConfig mode aggressive disable 
UCS(UDLDPortType)# setIntfUDLDConfig review
            Commands in queue:
        setIntfUDLDConfig udldInterfaceConfig port 3 
        setIntfUDLDConfig udldInterfaceConfig mode aggressive disable  
            UCS(UDLDPortType)# setIntfUDLDConfig commit
             SetIntfUDLDConfig Commit Success!!!
            UCS(UDLDPortType)# exit

          This disables UDLD in an aggressive mode on port 3 of ME 1200 NID.

          Getting Current Global UDLD Values

             Command or ActionPurpose
            Step 1ConfigureNID


            Example: 
            UCS#Configure NID 1
             

            Opens a new session for NID 1.

             
            Step 2UDLDPortType


            Example: 
            UCS# UDLDPortType
                          		Enters the UDLD mode.  
            Step 3getGlobalUDLDConfReq


            Example: 
            UCS(UDLDPortType)# getGlobalUDLDConfig getGlobalUDLDConfReq
             

            Enters UDLD global configuration mode.

             
            Step 4getGlobalUDLDConfig review


            Example: 
            UCS(UDLDPortType)# getGlobalUDLDConfig review
                          		(Optional) Displays the configuration.  
            Step 5getGlobalUDLDConfig commit


            Example: 
            UCS(UDLDPortType)# getGlobalUDLDConfig commit
                          		Sends the configuration to NID.  
            Step 6exit


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

            Configuration Example

            • The example shows how to get current global UDLD values: 

              UCS# UDLDPortType
UCS(UDLDPortType)# getGlobalUDLDConfig getGlobalUDLDConfReq
UCS(UDLDPortType)# getGlobalUDLDConfig review
              Commands in queue:
        getGlobalUDLDConfig getGlobalUDLDConfReq 
              UCS(UDLDPortType)# getGlobalUDLDConfig commit
              GetGlobalUDLDConfig_Output.udldGlobalConfig.mode.t = 1
GetGlobalUDLDConfig_Output.udldGlobalConfig.mode.u.normal = false
GetGlobalUDLDConfig_Output.udldGlobalConfig.message_interval = 7

 GetGlobalUDLDConfig Commit Success!!!
              UCS(UDLDPortType)# exit

              The following is a sample output on the NID. 

              Decoding of Request message was successful
Decoded record:
GetGlobalUDLDConfig_Input.getGlobalUDLDConfReq = '0'

 Set UDLD global to defaultsEncoding of Response message was successful
Encoded record:
GetGlobalUDLDConfig_Output.udldGlobalConfig.mode.t = 1
GetGlobalUDLDConfig_Output.udldGlobalConfig.mode.u.normal = false
GetGlobalUDLDConfig_Output.udldGlobalConfig.message_interval = 7
GetGlobalUDLDConfig_Output.xmlns:ns0 = "http://new.webservice.namespace"
GetGlobalUDLDConfig_Output.xmlns:http = "http://schemas.xmlsoap.org/wsdl/http/"
GetGlobalUDLDConfig_Output.xmlns:mime = "http://schemas.xmlsoap.org/wsdl/mime/"
GetGlobalUDLDConfig_Output.xmlns:soap = "http://schemas.xmlsoap.org/wsdl/soap/"
GetGlobalUDLDConfig_Output.xmlns:soapenc = "http://schemas.xmlsoap.org/soap/encoding/"
GetGlobalUDLDConfig_Output.xmlns:wsdl = "http://schemas.xmlsoap.org/wsdl/"

            Getting Current Port Specific UDLD Values

               Command or ActionPurpose
              Step 1ConfigureNID


              Example: 
              UCS#Configure NID 1
               

              Opens a new session for NID 1.

               
              Step 2UDLDPortType


              Example: 
              UCS# UDLDPortType
                              		Enters the UDLD mode.  
              Step 3etGlobalUDLDConfReq


              Example: 
              UCS(UDLDPortType)# getIntfUDLDConfig udldPhyPort 3
               

              Enters UDLD port specific configuration mode.

               
              Step 4setGlobalUDLDConfig review


              Example: 
              UCS(UDLDPortType)# getIntfUDLDConfig review
                              		(Optional) Displays the configuration.  
              Step 5setGlobalUDLDConfig commit


              Example: 
              UCS(UDLDPortType)# getIntfUDLDConfig commit
                              		Sends the configuration to NID.  
              Step 6exit


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

              Configuration Example

              • The example shows how to get current port specific UDLD values when UDLD is disabled: 

                UCS# UDLDPortType
UCS(UDLDPortType)# getIntfUDLDConfig udldPhyPort 3
UCS(UDLDPortType)# getIntfUDLDConfig review
                Commands in queue:
        getIntfUDLDConfig udldPhyPort 3 
                UCS(UDLDPortType)# getIntfUDLDConfig commit
                GetIntfUDLDConfig_Output.udldInterfaceConfig.mode.t = 1
GetIntfUDLDConfig_Output.udldInterfaceConfig.mode.u.enable = false
GetIntfUDLDConfig_Output.udldInterfaceConfig.message_interval = 7
GetIntfUDLDConfig_Output.udldInterfaceConfig.port = 3

 GetIntfUDLDConfig Commit Success!!!
                UCS(UDLDPortType)# exit

                The following is a sample output on the NID. 

                # Decoding of Request message was successful
Decoded record:
GetIntfUDLDConfig-Input.udldPhyPort = 3 
Set UDLD intf to defaultsEncoding of Response message was successful
Encoded record:
GetIntfUDLDConfig_Output.udldInterfaceConfig.mode.t = 1
GetIntfUDLDConfig_Output.udldInterfaceConfig.mode.u.enable = false
GetIntfUDLDConfig_Output.udldInterfaceConfig.message_interval = 7
GetIntfUDLDConfig_Output.udldInterfaceConfig.port = 3
GetIntfUDLDConfig_Output.xmlns:ns0 = "http://new.webservice.namespace"
GetIntfUDLDConfig_Output.xmlns:http = "http://schemas.xmlsoap.org/wsdl/http/"
GetIntfUDLDConfig_Output.xmlns:mime = "http://schemas.xmlsoap.org/wsdl/mime/"
GetIntfUDLDConfig_Output.xmlns:soap = "http://schemas.xmlsoap.org/wsdl/soap/"
GetIntfUDLDConfig_Output.xmlns:soapenc = "http://schemas.xmlsoap.org/soap/encoding/"
GetIntfUDLDConfig_Output.xmlns:wsdl = "http://schemas.xmlsoap.org/wsdl/"

              • The example shows how to get current port specific UDLD values when UDLD is enabled: 

                UCS# UDLDPortType
UCS(UDLDPortType)# getIntfUDLDConfig udldPhyPort 3
UCS(UDLDPortType)# getIntfUDLDConfig review
                Commands in queue:
        getIntfUDLDConfig udldPhyPort 3 
                UCS(UDLDPortType)# getIntfUDLDConfig commit
                GetIntfUDLDConfig_Output.udldInterfaceConfig.mode.t = 1
GetIntfUDLDConfig_Output.udldInterfaceConfig.mode.u.enable = true
GetIntfUDLDConfig_Output.udldInterfaceConfig.message_interval = 7
GetIntfUDLDConfig_Output.udldInterfaceConfig.port = 3

 GetIntfUDLDConfig Commit Success!!!
                UCS(UDLDPortType)# exit

                The following is a sample output on the NID. 

                # Decoding of Request message was successful
Decoded record:
GetIntfUDLDConfig-Input.udldPhyPort = 3
 
Set UDLD intf to defaultsEncoding of Response message was successful
Encoded record:
GetIntfUDLDConfig_Output.udldInterfaceConfig.mode.t = 1
GetIntfUDLDConfig_Output.udldInterfaceConfig.mode.u.enable = true
GetIntfUDLDConfig_Output.udldInterfaceConfig.message_interval = 7
GetIntfUDLDConfig_Output.udldInterfaceConfig.port = 3
GetIntfUDLDConfig_Output.xmlns:ns0 = "http://new.webservice.namespace"
GetIntfUDLDConfig_Output.xmlns:http = "http://schemas.xmlsoap.org/wsdl/http/"
GetIntfUDLDConfig_Output.xmlns:mime = "http://schemas.xmlsoap.org/wsdl/mime/"
GetIntfUDLDConfig_Output.xmlns:soap = "http://schemas.xmlsoap.org/wsdl/soap/"
GetIntfUDLDConfig_Output.xmlns:soapenc = "http://schemas.xmlsoap.org/soap/encoding/"
GetIntfUDLDConfig_Output.xmlns:wsdl = "http://schemas.xmlsoap.org/wsdl/"

              Verifying UDLD

              Use the following command to verify the UDLD status on the UCS controller.

              • showUDLDStatusReq

                This command displays the UDLD configuration status on the NID. The following is a sample output from the command: 

                ucs(config-controller-UDLDPortType)# showUDLDStatus showUDLDStatusReq
                ucs(config-controller-UDLDPortType)# showUDLDStatus review
                Commands in queue:
	              showUDLDStatus showUDLDStatusReq
                ucs(config-controller-UDLDPortType)# showUDLDStatus commit
                ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[0].port = 1
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[0].mode = 'Disable'
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[0].messageInterval = 7
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[0].adminState = false
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[0].localDeviceId = 'B8-38-61-68-7B-BC'
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[0].localDeviceName = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[0].bidirState = 'Indeterminant'
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[0].nbrPortID = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[0].nbrDeviceID = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[0].nbrDeviceName = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[0].nbrLinkState = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[1].port = 2
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[1].mode = 'Disable'
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[1].messageInterval = 7
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[1].adminState = false
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[1].localDeviceId = 'B8-38-61-68-7B-BC'
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[1].localDeviceName = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[1].bidirState = 'Indeterminant'
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[1].nbrPortID = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[1].nbrDeviceID = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[1].nbrDeviceName = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[1].nbrLinkState = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[2].port = 3
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[2].mode = 'Normal'
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[2].messageInterval = 10
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[2].adminState = true
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[2].localDeviceId = 'B8-38-61-68-7B-BC'
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[2].localDeviceName = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[2].bidirState = 'Indeterminant'
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[2].nbrPortID = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[2].nbrDeviceID = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[2].nbrDeviceName = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[2].nbrLinkState = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[3].port = 4
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[3].mode = 'Normal'
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[3].messageInterval = 10
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[3].adminState = true
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[3].localDeviceId = 'B8-38-61-68-7B-BC'
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[3].localDeviceName = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[3].bidirState = 'Indeterminant'
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[3].nbrPortID = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[3].nbrDeviceID = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[3].nbrDeviceName = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[3].nbrLinkState = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[4].port = 5
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[4].mode = 'Normal'
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[4].messageInterval = 10
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[4].adminState = true
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[4].localDeviceId = 'B8-38-61-68-7B-BC'
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[4].localDeviceName = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[4].bidirState = 'Indeterminant'
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[4].nbrPortID = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[4].nbrDeviceID = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[4].nbrDeviceName = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[4].nbrLinkState = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[5].port = 6
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[5].mode = 'Disable'
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[5].messageInterval = 7
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[5].adminState = false
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[5].localDeviceId = 'B8-38-61-68-7B-BC'
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[5].localDeviceName = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[5].bidirState = 'Indeterminant'
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[5].nbrPortID = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[5].nbrDeviceID = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[5].nbrDeviceName = ''
ShowUDLDStatus_Output.showUDLDStatusResp.udldStatusList[5].nbrLinkState = ''

              Additional References

              Related Documents

              Related Topic Document Title

              Cisco ME 3800x and ME 3600x Switches Software Configuration Guide, Cisco IOS Release 15.4(1)S

              http:/​/​www.cisco.com/​c/​en/​us/​td/​docs/​switches/​metro/​me3600x_3800x/​software/​release/​15-4_1_S/​configuration/​guide/​3800x3600xscg.html

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