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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: SNCP Ring Services

Configuration Example: SNCP Ring Services

When compared to the MSP ring service, the SNCP service has the special physical path as the protection path. In addition, the SNCP service is dually fed and selectively received. In SNCP service configuration, you do not need to respectively create the protection subnet and service. For service configuration, however, you need to respectively configure the working service and protection service.

Configuration Networking Diagram

The creation of the SNCP ring network is similar to the MSP ring network. For example, both two topologies are based on two fibers and their services must pass through the intermediate node for transmission from the source NE to the sink NE. The difference is that the SNCP protection and SNCP service can be created on the U2000 at a time.

Figure 6-8 shows an SNCP ring consisting of four NEs. In this example, an NE on the ring network uses the S208 board to transmit SDH services.

Figure 6-8 Networking diagram of an SNCP ring

Service Planning in End-to-End Mode

This topic describes service planning in end-to-end mode.

Signal flows and timeslot allocation

Figure 6-9 shows service signal flows and timeslot allocation. In the practical configuration, you can plan the working path and protection path according to requirements. The service capacity is one VC-4.

Figure 6-9 Signal flows and timeslot allocation

Service Planning

Table 6-7 Service planning: virtual port mapping of universal line boards
Parameter Value in This Example Value Description
Service Mapping SDH The service type is SDH.
Carried Service ODU2 In this example, the carried service is STM-64 on the ODU2 level.
NE1-NE2 Source NE1-Shelf0(subrack)-8-V2U210-1(IN1/OUT1) In this example, the U210 board in slot 8 of NE1 is used as the source universal line board.
Sink NE2-Shelf0(subrack)-12-V2U210-1(IN1/OUT1) In this example, the U210 board in slot 12 of NE2 is used as the sink universal line board.
NE2-NE3 Source NE2-Shelf0(subrack)-8-V2U210-1(IN1/OUT1) In this example, the U210 board in slot 8 of NE2 is used as the source universal line board.
Sink NE3-Shelf0(subrack)-12-V2U210-1(IN1/OUT1) In this example, the U210 board in slot 12 of NE3 is used as the sink universal line board.
NE3-NE4 Source NE3-Shelf0(subrack)-8-V2U210-1(IN1/OUT1) In this example, the U210 board in slot 8 of NE3 is used as the source universal line board.
Sink NE4-Shelf0(subrack)-12-V2U210-1(IN1/OUT1) In this example, the U210 board in slot 12 of NE4 is used as the sink universal line board.
NE4-NE1 Source NE4-Shelf0(subrack)-8-V2U210-1(IN1/OUT1) In this example, the U210 board in slot 8 of NE4 is used as the source universal line board.
Sink NE1-Shelf0(subrack)-12-V2U210-1(IN1/OUT1) In this example, the U210 board in slot 12 of NE1 is used as the sink universal line board.
Table 6-8 Service planning: VC-4 services
Parameter Value in This Example Value 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 Shelf0(subrack)-2-V1S208-1(SDH-1)-VC4:1 In this example, the S208 board in slot 2 of NE1 is used as the source board.
Sink Shelf0(subrack)-2-V1S208-1(SDH-1)-VC4:1 In this example, the S208 board in slot 2 of NE3 is used as the sink board.
Activate Immediately Yes -

Configuration Process (End-to-End Mode)

This topic describes how to create SNCP ring services in end-to-end mode.

Prerequisites

  • The physical topology of the network must be created.
  • The NEs, boards, and fibers must be created on the U2000.
  • OCh trails are searched out.
  • When the port is set to the SDH line mode, OCh trails do not need to be searched out. You can skip steps 1 and 2.
  • 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 between NE1 and NE2, between NE2 and NE3, between NE3 and NE4, and between NE4 and NE1 respectively. For details about the procedure, see Configuring Virtual Ports and Mapping in End-to-End Mode.
  2. Search WDM trails. For details, see Searching for WDM Trails.
  3. Create SDH services.
    1. Log in to the NMS, as shown in the following figure.

    2. Set basic attributes.

    3. Click Browse to select the source and sink NEs.

    4. Click the SNCP Attribute tab.
    5. In the topology on the right, right-click NE1 and choose Set Dual-Feed Point from the shortcut menu.
    6. Right-click NE3 and choose Set Selective-Receiving Point from the shortcut menu.
    7. Right-click NE2, choose Set Explicit Node from the shortcut menu, and set NE2 as the explicit node of the working link.
    8. Click Specify Route Channel and set the timeslot for the services to use.
    9. Click Apply to complete the service creation.
  4. 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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