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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 Services on the SNCP Ring with a Non-Protection Chain

Configuring Services on the SNCP Ring with a Non-Protection Chain

To configure the services on the SNCP ring, you can directly configure the working service and protection service, without first configuring the protection subnet. To configure the services on the non-protection chain, you can configure the services only after the protection subnet is created.

Networking Diagram

The networking of the SNCP ring in the case of configuring the services on the SNCP ring with a non-protection chain is similar to the networking in the case of configuring the services on the SNCP ring. The services from the SNCP ring to the non-protection chain pass through the intersecting node and are added to or dropped from the NE on the non-protection chain.

Figure 2-15 shows the networking diagram of the SNCP ring with a non-protection chain. The SNCP ring comprises five pieces of equipment.

In this example, 5xE1 services are configured between NE3 and NE5. The SP3D boards are configured on the source NE (NE3) and the sink NE (NE5) as tributary boards to add and drop services. The SL4D and SL1D boards are used as the line boards for transmitting SDH services.

Figure 2-15  Networking diagram of the services on the SNCP 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 services on the SNCP ring with a non-protection chain, you need to plan proper traffic directions for the services on the SNCP ring and the services on the non-protection chain. In the case of the services on the SNCP ring, allocate timeslots for the source slot of the working service and timeslots for the source slot of the protection service, when allocating timeslots for source slots.

Figure 2-16 shows the signal flow of the services on the SNCP ring with a non-protection chain and the timeslot allocation to the services on the SNCP ring with a non-protection chain. In this example, five E1 services are configured between NE3 and NE5.

In this example, the traffic direction of the services on the SNCP ring, is configured as follows:

  • Traffic direction of the working service between NE3 and NE4: NE3-NE4
  • Traffic direction of the protection service between NE3 and NE4: NE3-NE2-NE1-NE4

In the actual configuration, you can plan other proper working paths and protection paths according to the requirement.

Figure 2-16  Signal flow and timeslot allocation

Per-NE Configuration Process

Before you configure the services on the SNCP ring with a non-protection chain, familiarize yourself with the information about the source slot, sink slot, and their corresponding timeslots of the working service and protection service on the source and sink NEs on the SNCP ring. You need to configure the pass-through services on the intersecting NE.

Prerequisites

  • The physical topology of the network must be created.
  • The NEs, boards, and fibers must be created on the U2000.
  • The created protection subnet must be consistent with the actual network topology. For details about how to create the protection subnet, see Configuring a Non-Protection Chain.
  • You must be familiar with Signal Flow and Timeslot Allocation.

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 SNCP Service 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
      Service Type SNCP In this example, Service Type is set to SNCP.
      Level VC12 In this example, E1 services are configured. Hence, Level of the E1 services is set to VC12.
      Revertive Mode Revertive When an NE is in the switching state, the NE is restored from the switching state to the normal state some time after the working path is recovered to normal.
      Direction Bidirectional In this example, the cross-connections are configured in the SNCP receive direction and in the SNCP transmit direction.
      Hold-Off Time (100ms) 0 It is recommended that this parameter adopts the default value.
      WTR Time (s) 600 After the working path is recovered to normal and the normal state lasts for 600s, the switching restoration occurs. This parameter is valid only when the Revertive Mode parameter is set to Revertive.
      Working Service Source Slot 1-SL4D-1(SDH-1) In this example, the SL4D board in slot 1 of NE3 is configured as the source line board of the working service. See Figure 2-16.
      Source VC4 VC4-1 In this example, the working 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 working service source occupies VC-12s 1-5.
      Sink Slot 3-SP3D In this example, the SP3D board in slot 3 of NE3 is configured as the sink line board of the working service. See Figure 2-16.
      Sink VC4 - -
      Sink Timeslot Range(e.g.1,3-6) 1-5 In this example, five E1 services are configured between NE3 and NE5. Hence, the working service source occupies VC-12s 1-5.
      Protection Service Source Slot 1-SL4D-2(SDH-2) In this example, the SL4D board in slot 1 of NE3 is configured as the source line board of the protection service. See Figure 2-16.
      Source VC4 VC4-1 In this example, the protection 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 protection service source occupies VC-12s 1-5.

  2. Configure the SDH services of the sink NE (NE4).
    1. In the NE Explorer, click , and then select NE4. Click OK.
    2. Choose Configuration > SDH Service Configuration from the Function Tree.
    3. Click Create SNCP Service 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
      Service Type SNCP In this example, Service Type is set to SNCP.
      Level VC12 In this example, E1 services are configured. Hence, Level of the E1 services is set to VC12.
      Revertive Mode Revertive When an NE is in the switching state, the NE is restored from the switching state to the normal state some time after the working path is recovered to normal.
      Direction Bidirectional In this example, the cross-connections are configured in the SNCP receive direction and in the SNCP transmit direction.
      Hold-Off Time (100ms) 0 It is recommended that this parameter adopts the default value.
      WTR Time (s) 600 After the working path is recovered to normal and the normal state lasts for 600s, the switching restoration occurs. This parameter is valid only when the Revertive Mode parameter is set to Revertive.
      Working Service 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 of the working service. See Figure 2-16.
      Source VC4 VC4-1 In this example, the working 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 working service source occupies VC-12s 1-5.
      Sink Slot 2-SL1D-1(SDH-1) In this example, the SL1D board in slot 2 of NE4 is configured as the sink line board of the working service. See Figure 2-16.
      Sink VC4 VC4-1 In this example, the working 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 working service sink occupies VC-12s 1-5.
      Protection Service Source Slot 1-SL4D-1(SDH-1) In this example, the SL4D board in slot 1 of NE3 is configured as the source line board of the protection service. See Figure 2-16.
      Source VC4 VC4-1 In this example, the protection 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 protection service source occupies VC-12s 1-5.

  3. Configure the pass-through services of NE2.
    1. In the NE Explorer, click , and then select NE2. Click OK.
    2. Choose Configuration > SDH Service Configuration from the Function Tree.
    3. 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, Direction of the service is set to Bidirectional.
      Source Slot 1-SL4D-2(SDH-2) In this example, the SL4D board in slot 1 of NE2 is configured as the source line board. See Figure 2-16.
      Source VC4 VC4-1 In this example, the working 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 working service source occupies VC-12s 1-5.
      Sink Slot 1-SL4D-1(SDH-1) In this example, the SL4D board in slot 1 of NE2 is configured as the sink line board. See Figure 2-16.
      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. Configure the pass-through services of NE1. Refer to 3 and configure the SDH services of NE1. The method and parameters for configuring the pass-through services of NE1 are the same as the method and parameters for configuring the pass-through services of NE2.
  5. Configure the services on the non-protection chain at NE5.
    1. In the NE Explorer, click , and then select NE5. Click OK.
    2. Choose Configuration > SDH Service Configuration from the Function Tree.
    3. Click Create on the lower-right pane to display the Create SDHP 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, Direction of the E1 services is set to Bidirectional.
      Source Slot 3-SP3D In this example, the SP3D board in slot 3 of NE5 is configured as the source tributary board. See Figure 2-16.
      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 working 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 2-16.
      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 -

  6. Check whether the services are configured correctly. For details, see Verifying the Correctness of the SDH Service Configuration.
  7. Enable the performance monitoring function of the NEs. For details, see Setting Network-Wide Performance Monitoring.
  8. 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

Before configuring services on an SNCP ring with a non-protection chain, familiarize yourself with the information about the source slot, sink slot, and their corresponding timeslots of the working service and protection service on the source and sink NEs on the SNCP ring. You also need to configure pass-through services on the intersecting NE. The following part describes how to configure services on an SNCP ring with a non-protection chain in an end-to-end manner.

Prerequisites

  • The physical network topology must be set up.
  • NEs, boards, and fibers must be successfully created on the U2000.
  • A protection subnet must be created and must be the same as the actual topology. For details about how to create a protection subnet, see Configuring a Non-Protection Chain.
  • The operator must understand the information provided in Signal Flow and Timeslot Allocation.

Procedure

  1. Create a working 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 NE4 on the right of the Main Topology, select the trail from NE3 to NE4 as the working, VC-4 server trail, and click Close. In the Operation Result dialog box indicating that the operation succeeded, click Close.
    4. Optional: In the Operation Result dialog box indicating that the operation succeeded, click Browse Trail to query the created VC4 server trail.
  2. Create a protection VC-4 server trail, using the method described in 1.

    NOTE:

    When creating a protection VC-4 server trail, double-click NE3 and NE4 on the right of the Main Topology, and ensure that the traffic direction is NE3-NE2-NE1-NE4.

    On the Route Constraint tab, click the Explicit Node tab, right-click in the blank area, and then choose Add from the shortcut menu. In the Add Explicit Node dialog box that is displayed, set Type and What for configuring the pass-through node NE2, and then click OK.

  3. Create a VC-4 server trail without a protection chain.
    1. In Create SDH Tail, configure the parameters as follows. Set Level to VC4 Server Trail, and take default values for other parameters.

    2. Double-click NE4 and NE5 on the right of the Main Topology, and click Apply. Then, click Close in the Operation Result dialog box indicating that the operation succeeded.
    3. Optional: In the Operation Result dialog box indicating that the operation succeeded, click Browse Trail to query the created VC4 server trail.
  4. Create VC12 services after setting up a VC-4 server trail.
    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 SP3D board to be configured and choose 1 on Tributary Port, and then click OK.
    3. Configure NE5 using the method described in 4.b.
    4. In Create SDH Trail, click the SNCP Setting tab, right-click in the blank area, and choose Add from the shortcut menu. In the Add the dual-fed and selective-receiving node dialog box that is displayed, select NE3 as the dual-fed node and NE4 as the selective receiving node, and then click OK. In the Operation Result dialog box indicating that the operation succeeded, click Close.
    5. Select Copy after Creation and click Apply. In the Operation Result dialog box indicating that the operation succeeded, click Close. Then, the Copy dialog box is displayed.
    6. In Available Timeslots/Port, select the ports from NE3-Slot5-SP3D-2(SDH_TU-2) to NE5-Slot5-SP3D-5(SDH_TU-5), and click Add, and then click OK.
    7. In the Operation Result dialog box indicating that the operation succeeded, click Close.
    8. Optional: In the Operation Result dialog box indicating that the operation succeeded, you can also click Browse Trail to query the created VC12 services.
  5. Check whether the service configuration is correct. For details, see Verifying the Correctness of the SDH Service Configuration.
  6. Enable the performance monitoring function for NEs. For details, see Setting Network-Wide Performance Monitoring.
  7. 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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