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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 Service on the MSP Ring with a Non-Protection Chain

Configuring Service on the MSP Ring with a Non-Protection Chain

Configure the protection subnet for the MSP, Protection Subnet for the non-protection chain, and services on the MSP ring with a non-protection chain separately. It is recommended that you configure the protection subnets before configuring the services on the MSP ring with a non-protection ring chain.

Networking Diagram

In the case of the MSP ring with a non-protection chain, the networking diagram of the MSP ring is similar to the networking diagram of the single two-fiber bidirectional MSP ring. The only difference is that one line board needs to be configured on the intersecting NE when the non-protection chain is added. This can realize the pass-through of the services when the services are required to be transmitted out of the MSP ring.

Figure 2-17 shows the networking diagram of the MSP ring with a non-protection chain. The MSP ring comprises five pieces of equipment. In this example, the SP3D boards are configured on the source NE (NE3) and sink NE (NE5) as tributary boards to add and drop services, and the SL4D and SL1D boards are used as line boards to transmit SDH services.

Figure 2-17  Networking diagram of the services on the two-fiber bidirectional MSP ring with a non-protection chain

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 service on the MSP ring with a non-protection chain, you should plan a proper traffic direction and a timeslot allocation scheme for the services on the SNCP ring and the services on the non-protection chain.

Figure 2-18 shows the signal flow of the services on the MSP ring with a non-protection chain and the timeslot allocation to the services on the MSP ring with a non-protection chain. In this example, five E1 services are added to or dropped from NE3 and NE5, and these services pass through NE4.

On the MSP ring, the services from NE3 to NE4 in this example are transmitted on the short path. In the actual configuration, you can plan other service paths according to the requirement.

NOTE:

On a ring network, the long path and short path do not actually refer to the geographical distance. They are determined by the number of intermediate NEs. As shown in Figure 2-18, when the service is transmitted from NE3 to NE4, NE3→NE4 is the short path, and NE3→NE2→NE1→NE4 is the long path.

Figure 2-18  Signal flow and timeslot allocation

Per-NE Configuration Process

The configuration of the services on the two-fiber bidirectional MSP ring with a non-protection chain is independent of the creation of the protection subnets for the MSP and for the non-protection chain. To configure the services on the two-fiber bidirectional MSP ring with a non-protection chain, configure the 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 the protection subnet is already created.

Prerequisites

Procedure

  1. Configure the SDH services of the source NE (NE3).
    1. In the NE Explorer, select NE3, and then choose Configuration > SDH Service Configuration from the Function Tree.
    2. Click Create on the lower-right pane to display the Create SNCP 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.
      Source Slot 3-SP3D In this example, the SP3D board in slot 3 of NE3 is configured as the source tributary board. See Figure 2-18.
      Source VC4 - -
      Source Timeslot Range(e.g.1,3-6) 1-5 In this example, five E1 services are configured between NE3 and NE5. Hence, the service source occupies VC-12s 1-5.
      Sink Slot 1-SL4D-1(SDH-1) In this example, the SL4D board in slot 1 of NE3 is configured as the sink line board. See Figure 2-18.
      Sink VC4 VC4-1 In this example, the service sink uses the timeslots of VC4-1.
      Sink Timeslot Range(e.g.1,3-6) 1-5 In this example, five E1 services are configured between NE3 and NE5. Hence, the service sink occupies VC-12s 1-5.
      Activate Immediately Yes -

  2. Refer to 1 and configure the SDH services of NE5. 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.
    Source Slot 3-SP3D In this example, the SP3D board in slot 3 of NE5 is configured as the source tributary board. See Figure 2-18.
    Source VC4 - -
    Source Timeslot Range(e.g.1,3-6) 1-5 In this example, five E1 services are configured between NE3 and NE5. Hence, the service source occupies VC-12s 1-5.
    Sink Slot 2-SL1D-1(SDH-1) In this example, the SL1D board in slot 2 of NE5 is configured as the sink line board. See Figure 2-18.
    Sink VC4 VC4-1 In this example, the service sink uses the timeslots of VC4-1.
    Sink Timeslot Range(e.g.1,3-6) 1-5 In this example, five E1 services are configured between NE3 and NE5. Hence, the service sink occupies VC-12s 1-5.
    Activate Immediately Yes -

  3. Configure the pass-through services of NE4.
    1. In the NE Explorer, select NE4 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.
      Source Slot 1-SL4D-2(SDH-2) In this example, the SL4D board in slot 1 of NE4 is configured as the source line board. See Figure 2-18.
      Source VC4 VC4-1 In this example, the service source uses the timeslots of VC4-1.
      Source Timeslot Range(e.g.1,3-6) 1-5 In this example, five E1 services are configured between NE3 and NE5. Hence, the service sink occupies VC-12s 1-5.
      Sink Slot 2-SL1D-1(SDH-1) In this example, the SL1D board in slot 2 of NE5 is configured as the sink line board. See Figure 2-18.
      Sink VC4 VC4-1 In this example, the service sink uses the timeslots of VC4-1.
      Sink Timeslot Range(e.g.1,3-6) 1-5 In this example, five E1 services are configured between NE3 and NE5. Hence, the service sink occupies VC-12s 1-5.
      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 services on a two-fiber bidirectional MSP ring with a non-protection chain is independent of the creation of protection subnets for the MSP and for the non-protection chain. To configure services on a two-fiber bidirectional MSP ring with a non-protection chain, 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 the protection subnet has already been created. The following part describes how to configure services on an MSP ring with a non-protection chain in an end-to-end manner.

Prerequisites

Procedure

  1. Create a VC-4 server trail.
    1. Choose Service > SDH Trail > Create SDH Trail from the Main Menu.
    2. Set associated parameters as follows. Set Level to VC4 Server Trail, and take default values for other parameters.

    3. Double-click NE3 and NE5 on the right of the Main Topology, and click Apply. Then, click Close in the Operation Result dialog box that is displayed.
    4. Optional: In the Operation Result dialog box that is displayed, you can also click Browse Trail to query the created VC4 server trail.
  2. Create VC12 services.
    1. In Create SDH Tail, configure associated parameters as follows. Set Level to VC12, and take default values for other parameters.

    2. Double-click the NE3 on the right of the Main Topology. The Select Board Port-Source dialog box is displayed. Select the required PDH board and Tributary Port, and then click OK.
    3. Configure NE5 using the method described in 2.b.
    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 NE3-Slot3-SP3D-2(SDH_TU-2) to NE5-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.
  3. Check whether the service configuration is correct. For details, see Verifying the Correctness of the SDH Service Configuration.
  4. Enable the performance monitoring function for NEs. For details, see Setting Network-Wide Performance Monitoring.
  5. Back up the configuration data of the NEs. For details, see Backing Up the NE Data to the System Control Board.
Relevant Task

To delete any service that is incorrectly configured, see Deleting SDH Services.

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Updated: 2019-01-21

Document ID: EDOC1100020976

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