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OSN 9800 V100 Configuration Guide 03

This document introduces service configuration process for OSN 9800.

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Configuration Example: 1+1 Linear MSP Services

Configuration Example: 1+1 Linear MSP Services

In the case of the 1+1 linear multiplex section protection (MSP), services are transmitted on the working path and protection path at the same time. The sink NE selects the services from the working path in normal cases, and selects services from the protection path when the working path becomes faulty.

Networking Diagram

The networking diagram for the point-to-point 1+1 linear MSP services is simple. Two NEs are connected to two pairs of optical fibers.

As shown in Figure 6-19, NE1 and NE2 use the S208 boards as tributary boards to add and drop services and the U210 boards as line boards to transmit SDH services.

Figure 6-19 Networking diagram for 1+1 linear MSP services

Service Planning on a Per-NE Basis

To configure the 1+1 linear MSP service, you can configure the service added to the source NE and dropped from the sink NE if the 1+1 linear MSP is already created.

Signal Flow and Timeslot Allocation

As shown in Figure 6-20, the signal flow and timeslot allocation are as follows:
  • Traffic direction from NE1 to NE2: NE1→NE2

    Services are added to the source NE (NE1) and are transmitted from the working path and protection path at the same time. Then, the services are dropped from the sink NE (NE2), which selects the services from the working path.

  • Traffic direction from NE2 to NE1: NE2→NE1

    Services are added to the source NE (NE2) and are transmitted on the working path and protection path at the same time. Then, the services are dropped from the sink NE (NE1), which selects the services from the working path.

  • The first VC-4 of the SDH link between NE1 and NE2 is used to transmit NE1←→NE2 services, and one STM-64 service is added and dropped separately on NE1 and NE2.
When the working path from NE1 to NE2 becomes faulty, in the case of single-ended switching, the signal flow is as follows:
  • Traffic direction from NE1 to NE2: NE1→NE2

    Services are added to the source NE (NE1) and are transmitted on the working path and protection path at the same time. Then, the services are dropped from the sink NE (NE2), which selects the services from the protection path.

  • The services from NE2 to NE1 are not affected, and the traffic direction is NE2→NE1.

    Services are added to the source NE (NE2) and are transmitted on the working path and protection path at the same time. Then, the services are dropped from the sink NE (NE1), which selects the services from the working path.

Figure 6-20 Signal flow and timeslot allocation of the 1+1 linear MSP service

Service Planning

Table 6-14 Service planning: SDH services on the source NE
Parameter Value in This Example Description
Level VC4 In this example, VC-4 services are required. Therefore, set this parameter to VC4.
Direction Bidirectional In this example, services are transmitted and received on the same path. Therefore, set this parameter to Bidirectional.
Source Slot Shelf0(subrack)-14-V1S208-1(SDH-1) In this example, the S208 board in slot 14 of NE1 is used as the source board of bidirectional services from NE1 to NE2.
Source Timeslot Range(e.g.1,3-6) 1 In this example, one STM-64 is required between NE1 and NE2, and the service source uses the first VC-4.
Sink Slot Shelf0(subrack)-22-V2U210-51(V_SDH-1) In this example, the U210 board in slot 22 of NE1 is used as the sink line board.
NOTE:
Configure a board slot on the working link rather than the protection link.
Sink Timeslot Range(e.g.1,3-6) 1 In this example, one STM-64 is required between NE1 and NE2, and the service sink uses the first VC-4.
Activate Immediately Yes -
Table 6-15 Service planning: SDH services on the sink NE
Parameter Value in This Example Description
Level VC4 In this example, VC-4 services are required. Therefore, set this parameter to VC4.
Direction Bidirectional In this example, services are transmitted and received on the same path.
Source Slot Shelf0(subrack)-9-V1S208-1(SDH-1) In this example, the S208 board in slot 9 of NE2 is used as the source line board.
Source Timeslot Range(e.g.1,3-6) 1 In this example, one STM-64 is required between NE1 and NE2, and the service source uses the first VC-4.
Sink Slot Shelf0(subrack)-25-V2U210-51(V_SDH-1) In this example, the U210 board in slot 25 of NE2 is used as the sink board of bidirectional services from NE1 to NE2.
NOTE:
Configure a board slot on the working link rather than the protection link.
Sink Timeslot Range(e.g.1,3-6) 1 In this example, one STM-64 is required between NE1 and NE2, and the service sink uses the first VC-4.
Activate Immediately Yes -

Configuration Process (Configuration on a Per-NE Basis)

This topic describes how to create 1+1 linear MSP protection services on a per-NE basis.

Prerequisites

  • The physical topology of the network must be created.
  • The NEs, boards, and fibers must be created on the U2000.
  • An SDH network is a synchronous system and has high requirements on clock synchronization. Therefore, ensure that SDH clocks have been configured before configuring services and features. For details, see "Configuring Clock".

Procedure

  1. Configure virtual port mapping for universal line boards on the source and sink NEs. For details about the procedure, see Configuring Virtual Ports and Mapping Paths by Station.

    NOTE:
    Virtual port mappings must be configured for the working and protection links separately, and the Type and Level values of the working and protection links must be the same.

  2. Search WDM trails. For details, see Searching for WDM Trails.
  3. Configure 1+1 linear MSP.
    1. Log in to the NMS, as shown in the following figure.

    2. Set the related parameters.

      NOTE:
      The 9800 does not support Resource Sharing or Assigned by VC4.

    3. Complete the creation.

  4. Configure SDH services for the source NE (NE1).
    1. In the NE Explorer, open the operation window.

    2. Set parameters.

      Table 6-16 Service planning: SDH services on the source NE
      Parameter Value in This Example Description
      Level VC4 In this example, VC-4 services are required. Therefore, set this parameter to VC4.
      Direction Bidirectional In this example, services are transmitted and received on the same path. Therefore, set this parameter to Bidirectional.
      Source Slot Shelf0(subrack)-14-V1S208-1(SDH-1) In this example, the S208 board in slot 14 of NE1 is used as the source board of bidirectional services from NE1 to NE2.
      Source Timeslot Range(e.g.1,3-6) 1 In this example, one STM-64 is required between NE1 and NE2, and the service source uses the first VC-4.
      Sink Slot Shelf0(subrack)-22-V2U210-51(V_SDH-1) In this example, the U210 board in slot 22 of NE1 is used as the sink line board.
      NOTE:
      Configure a board slot on the working link rather than the protection link.
      Sink Timeslot Range(e.g.1,3-6) 1 In this example, one STM-64 is required between NE1 and NE2, and the service sink uses the first VC-4.
      Activate Immediately Yes -


  5. Configure SDH services for the sink NE (NE2).

    Table 6-17 Service planning: SDH services on the sink NE
    Parameter Value in This Example Description
    Level VC4 In this example, VC-4 services are required. Therefore, set this parameter to VC4.
    Direction Bidirectional In this example, services are transmitted and received on the same path.
    Source Slot Shelf0(subrack)-9-V1S208-1(SDH-1) In this example, the S208 board in slot 9 of NE2 is used as the source line board.
    Source Timeslot Range(e.g.1,3-6) 1 In this example, one STM-64 is required between NE1 and NE2, and the service source uses the first VC-4.
    Sink Slot Shelf0(subrack)-25-V2U210-51(V_SDH-1) In this example, the U210 board in slot 25 of NE2 is used as the sink board of bidirectional services from NE1 to NE2.
    NOTE:
    Configure a board slot on the working link rather than the protection link.
    Sink Timeslot Range(e.g.1,3-6) 1 In this example, one STM-64 is required between NE1 and NE2, and the service sink uses the first VC-4.
    Activate Immediately Yes -


  6. Verify that the services are correctly configured with reference to Verifying the Service Configuration.
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Updated: 2019-09-05

Document ID: EDOC1100033663

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