Procedure

1. From the main menu of the U2000, choose Service > Tunnel > Create Tunnel. The Create Tunnel window is displayed. 
   
   
2. Set the basic information about the MPLS tunnel as follows: 
   
   
   • Tunnel Name: The value of this parameter is automatically generated on the U2000. The user can also enter a tunnel name based on the service plan. A tunnel name cannot contain Chinese characters.
   • Protocol Type: MPLS
   • Signaling Type: Static CR
   • Service Direction: The value of this parameter can be Bidirectional (recommended) or Unidirectional. The user can also set the value to Unidirectional based on the service plan.
   • Protection Type: Protection-Free

3. Configure the NEs that the MPLS tunnel traverses.
   • Method 1 (recommended): select the desired NEs in the topology view. This method is vivid and applies to the scenario where there are many NEs.
     1. In the topology view on the right, double-click the desired NEs one by one. Node Role of the NEs is Ingress, Egress, and Transit in turn.
      NOTE:

     • To delete Node Role of an NE, double-click the NE.
     • Click  to return to the upper-level physical topology view.
   • Method 2: select the desired NEs from the NE list. This method applies to the scenario where there are a few NEs.
     1. Click Add. Choose Node from the drop-down list that is displayed. 
        
        
     2. In the window that is displayed, select an NE that the MPLS tunnel traverses. The user can hold down Shift to select multiple NEs. Click  and OK.
        
        
     3. The position of an NE on an MPLS tunnel can be adjusted in either of the following ways:
        • Click Node Role of the NE to change Node Role of the NE on the MPLS tunnel.
        • Select the NE and clicking Up or Down to change Node Role of the NE on the MPLS tunnel.
   • Method 3: compute routes. This method applies only to the boards that support creating L2 links.
      NOTE:

     Before using this method, ensure that Creating L2 Links has been completed.

     1. In the topology view on the right, double-click the ingress and egress NEs. Node Role of the NEs is Ingress, Egress, and Transit respectively.
     2. Click Route Constraint. In the Set Route Constraint window that is displayed, add an NE or port, and set Explicit Restrictionand Exclude Restriction for the NE or port. 
        
        
     3. Click OK. Node Role of the NE or port is Transit.
     4. Click Calculate Route.
4. Configure the NNI ports that the MPLS tunnel traverses.
   1. Click Details in the lower part. The details about the MPLS tunnel are displayed on the right.
   2. Double-click the blank area in the Outbound Interface/Ring column of an ingress node and click . 
      
      
   3. In the list that is displayed, select an egress port of the ingress NE and click OK. The egress port is the NNI port of the ingress node.
      
      
   4. Select the NNI ports for the transit and egress nodes by repeating the preceding steps. For the transit node, Intbound Interface/Ring and Outbound Interface/Ring need to be set. For the egress node, Intbound Interface/Ring needs to be set.
5. Configure MPLS-TP OAM for the MPLS tunnel.
   1. Click MPLS-TP OAM(Y.1731).... The Configuration MPLS-TP OAM dialog box is displayed. 
      
      
   2. In the dialog box, click Add, set OAM Status of the MEP and RMEP to Enable, and click OK. 
      
      
6. Optional: Set other parameters for the MPLS tunnel and MPLS-TP OAM based on network planning.
   • In general, the other parameters of MPLS-TP OAM and an MPLS tunnel use the default values.
   • For the other parameters of an MPLS tunnel, see Parameters for Configuring a Static Tunnel (End-to-End Mode). For the other parameters of MPLS-TP OAM, see MPLS-TP OAM_Global OAM Parameters in the Feature Description.

7. Click Apply in the lower part to apply the MPLS tunnel configurations. The Operation Succeed dialog box is displayed.
   
   
8. In the Operation Result dialog box, click Browse Trail to view the configured MPLS tunnel.
   1. In the Manage Tunnel window that is displayed, ensure that Deployment Status is set to Deployed. 
      
      
   2. View the information about the tunnel and sub-layers. Select the configured tunnel. Click the Topology tab in the lower part of the Manage Tunnel window to unfold the tunnel and all the sub-layers. 
      
      
       NOTE:

      • The tunnel contains information about the ODUk, OTUk, and OCh layers only when the tunnel was carried on an ODUk channel.
      • After connecting logical fibers and before creating the tunnel, the users must create or search for an OCh trail.

9. Test the bidirectional connectivity of the MPLS tunnel using MPLS-TP OAM.
   1. In the Manage Tunnel window, right-click the MPLS tunnel and choose OAM > MPLS-TP OAM Test. The MPLS-TP OAM Test dialog box is displayed. 
      
      
   2. In the Select column, select the check box corresponding to the desired MPLS tunnel and click Run to start a loopback (LB) test. After the LB test is complete, click LB Statistics to view the detailed test results. 
      
      
   3. Optional: Select LT from the drop-down list, select the check box corresponding to the desired MPLS tunnel, and click Run to start a linktrace (LT) test. After the LT test is complete, click LT Statistics to view the detailed test results.