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OSN 500 550 580 V100R008C50 Commissioning and Configuration Guide 02

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Configuring the Two-Fiber Bidirectional MSP Services

Configuring the Two-Fiber Bidirectional MSP Services

To configure the two-fiber bidirectional MSP services, you need to create the MSP subnet protection and MSP services separately. There is no requirement for the configuration sequence.

Networking Diagram

The networking diagram of a single two-fiber bidirectional MSP ring is simple. When you construct the network, follow a certain order to create and name the NEs and ensure that the traffic flows in a proper direction. This helps when you plan the traffic directions and configure services in future.

Figure 2-11 shows the networking of the two-fiber bidirectional MSP ring that comprises four pieces of OptiX OSN equipment. In this example, the SP3D boards are configured on the source NE (NE1) and the sink NE (NE3) as tributary boards to add and drop services, and the SL4D boards are used as line boards to transmit SDH services.

Figure 2-11  Networking diagram of the services on the two-fiber bidirectional MSP ring

NOTE:

This topic considers the OptiX OSN 550 as an example to describe the board layout. In the case of other products, the configuration method is the same, except for the slots. For the slot information, see the Hardware Description of the relevant product.

Signal Flow and Timeslot Allocation

To configure the two-fiber bidirectional MSP service on a ring network, configure the services that need to be added to the ring network on the source NE, to pass through the intermediate nodes, and to be dropped from the sink NE, if the MSP protection subnet is already created. In the case of the ring network, more than one route is available from the source NE to the sink NE. In actual application scenarios, not all the routes need to be configured. Hence, you need to properly plan and configure the service directions and timeslots before the configuration.

Figure 2-12 shows the service signal flow and timeslot allocation. In this example, five E1 services are configured so that the services enter the ring network from NE1, pass through NE2, and then are dropped on the sink NE (NE3).

Figure 2-12  Signal flow and timeslot allocation

Per-NE Configuration Process

The configuration of the two-fiber bidirectional MSP services is independent of the configuration of the protection subnet. To configure the two-fiber bidirectional MSP service, if the protection subnet is configured, configure the SDH services from the tributary board to the line board on the source and sink NEs and configure the pass-through services on the intermediate NEs.

Prerequisites

Procedure

  1. Configure the SDH services of the source NE (NE1).
    1. In the NE Explorer, select NE1, and then choose Configuration > SDH Service Configuration from the Function Tree.
    2. Click Create on the lower-right pane to display the Create SDH Service dialog box. Set the parameters that are required, and then click OK.

      Parameter Value in This Example Description
      Level VC12 In this example, E1 services are configured. Hence, Level of the E1 services is set to VC12.
      Direction Bidirectional In this example, the services are transmitted and received on the same path. That is, the services are bidirectional services. Hence, Direction of the services is set to Bidirectional.
      Source Slot 3-SP3D In this example, the SP3D board in slot 3 is configured as the source tributary board. See Figure 2-12. You can select different source boards depending on the actual situation.
      Source VC4 - -
      Source Timeslot Range(e.g.1,3-6) 1-5 In this example, the total capacity of the services is 5xE1 according to the plan. The service level is VC12. Hence, Source Timeslot Range(e.g.1,3-6) is set to 1-5. See Figure 2-12.
      Sink Slot 1-SL4D-1(SDH-1) In this example, the SL4D board in slot 1 is configured as the sink line board. See Figure 2-12. You can select different sink boards depending on the actual situation.
      Sink VC4 VC4-1 In this example, the services require five VC-12s. Sink VC4 is set to VC4-1, because a VC-4 contains 63 VC-12s.
      Sink Timeslot Range(e.g.1,3-6) 1-5 In this example, the total capacity of the services is 5xE1 according to the plan. The service level is VC12. Hence, Sink Timeslot Range(e.g.1,3-6) is set to 1-5. See Figure 2-12.
      Activate Immediately Yes -

  2. Configure the SDH services of the sink NE (NE3). Refer to 1 and configure the SDH services of NE3. Set the parameters as follows.

    Parameter Value in This Example Description
    Level VC12 In this example, E1 services are configured. Hence, Level of the E1 services is set to VC12.
    Direction Bidirectional In this example, the services are transmitted and received on the same path. That is, the services are bidirectional services. Hence, Direction of the services is set to Bidirectional.
    Source Slot 1-SL4D-2(SDH-2) In this example, the SL4D board in slot 1 is configured as the source line board. See Figure 2-12. You can select different source boards depending on the actual situation.
    Source Timeslot Range(e.g.1,3-6) 1-5 In this example, the total capacity of the services is 5xE1 according to the plan. The service level is VC12. Hence, Source Timeslot Range(e.g.1,3-6) is set to 1-5. See Figure 2-12.
    Sink Slot 3-SP3D In this example, the SP3D board in slot 3 is configured as the sink tributary board. See Figure 2-12. You can select different sink boards depending on the actual situation.
    Sink VC4 VC4-1 In this example, the services require five VC-12s. Sink VC4 is set to VC4-1, because a VC-4 contains 63 VC-12s.
    Sink VC4 - -
    Sink Timeslot Range(e.g.1,3-6) 1-5 In this example, the total capacity of the services is 5xE1 according to the plan. The service level is VC12. Hence, Sink Timeslot Range(e.g.1,3-6) is set to 1-5. See Figure 2-12.
    Activate Immediately Yes -

  3. Configure the pass-through services of NE2.
    1. In the NE Explorer, select NE2 and then choose Communication > SDH Service Configuration from the Function Tree.
    2. Click Create on the lower-right pane to display the Create SDH Service dialog box. Set the parameters that are required, and then click OK.

      Parameter Value in This Example Description
      Level VC12 In this example, E1 services are configured. Hence, Level of the E1 services is set to VC12.
      Direction Bidirectional In this example, the services are transmitted and received on the same path. That is, the services are bidirectional services. Hence, Direction of the services is set to Bidirectional.
      Source Slot 1-SL4D-2(SDH-2) In this example, the SL4D board in slot 1 is configured as the source line board. See Figure 2-12. You can select different source boards depending on the actual situation.
      Source VC4 VC4-1 In this example, the services require five VC-12s. Source VC4 is set to VC4-1, because a VC-4 contains 63 VC-12s.
      Source Timeslot Range(e.g.1,3-6) 1-5 In this example, the total capacity of the services is 5xE1 according to the plan. The service level is VC12. Hence, Source Timeslot Range(e.g.1,3-6) is set to 1-5. See Figure 2-12.
      Sink Slot 1-SL4D-1(SDH-1) In this example, the SL4D board in slot 1 is configured as the sink line board. See Figure 2-12. You can select different sink boards depending on the actual situation.
      Sink VC4 VC4-1 In this example, the services require five VC-12s. Sink VC4 is set to VC4-1, because a VC-4 contains 63 VC-12s.
      Sink Timeslot Range(e.g.1,3-6) 1-5 In this example, the total capacity of the services is 5xE1 according to the plan. The service level is VC12. Hence, Sink Timeslot Range(e.g.1,3-6) is set to 1-5. See Figure 2-12.
      Activate Immediately Yes -

  4. Check whether the services are configured correctly. For details, see Verifying the Correctness of the SDH Service Configuration.
  5. Enable the performance monitoring function of the NEs. For details, see Setting Network-Wide Performance Monitoring.
  6. Back up the configuration data of the NEs. For details, see Backing Up the NE Data to the System Control Board.
Relevant Task

If the services are configured incorrectly and thus need to be deleted, see Deleting SDH Services.

End-to-End Configuration Process

The configuration of two-fiber bidirectional MSP services is independent of the configuration of a protection subnet. To configure two-fiber bidirectional MSP services, configure SDH services from the tributary board to the line board on the source and sink NEs and configure pass-through services on the intermediate NEs if a protection subnet has already been configured. The following part describes how to configure two-fiber bidirectional MSP services in end-to-end mode.

Prerequisites

  • The physical network topology must be set up.
  • NEs, boards, and fibers must be successfully created on the U2000.
  • An MSP subnet must be created and must be the same as the actual topology. For details about how to create a protection subnet, see Creating a Linear MS Protection Subnet.
  • The operator must understand the information provided in Signal Flow and Timeslot Allocation.
Background Information

In end-to-end mode, configuration of two-fiber unidirectional MSP services is similar to configuration of two-fiber bidirectional MSP services. The only difference is that you set Direction to Unidirectional for two-fiber unidirectional MSP services and set Direction to Bidirectional for two-fiber bidirectional MSP services.

Procedure

  1. Choose Service > SDH Trail > Create SDH Trail from the Main Menu.
  2. Create the VC-4 service-layer trail.
    1. Configure the parameters as follows. Set Level to VC4 Server Trail. The other parameters take default values.

    2. Double-click the source NE (NE1) and sink NE (NE3) on the right of the main topology and click Apply. In the Operation Result dialog box that is displayed, click Close.
    3. Optional: In the Operation Result dialog box that is displayed, you can also click Browse Trail to query the created VC4 service-layer trail.
  3. Create VC12 services.
    1. In Create SDH Tail, configure the parameters as follows. Set Level to VC12 and set Direction to Bidirectional. The other parameters take default values.

    2. Double-click the source NE on the right of the Main Topology. The Select Board Port-Source dialog box is displayed. Select the required PDH board and Tributary Port. Click OK.
    3. Double-click the sink NE (NE3) on the right of the main topology. Configure NE3 in the same manner.
    4. Select Copy after Creation and click Apply. In the Operation Result dialog box that is displayed, click Close. Then, the Copy dialog box is displayed.
    5. In Available Timeslots/Port, select the ports from NE1-Slot3-SP3D-2(SDH_TU-2) to NE3-Slot3-SP3D-5(SDH_TU-5), and click Add, and then click OK.
    6. In the Operation Result dialog box that is displayed, click Close.
    7. Optional: In the Operation Result dialog box that is displayed, you can also click Browse Trail to query the created VC12 services.
  4. Check whether the service configuration is correct. For details, see Verifying the Correctness of the SDH Service Configuration.
  5. Enable the performance monitoring function of the NEs. For details, see Setting Network-Wide Performance Monitoring.
  6. Back up the configuration data of the NEs. For details, see Backing Up the NE Data to the System Control Board.
Relevant Task

If the services are configured incorrectly and thus need to be deleted, see Deleting SDH Services.

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Updated: 2019-01-21

Document ID: EDOC1100020976

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