Configuring Services On The Sncp Ring; Networking Diagram; Signal Flow And Timeslot Allocation; Per-Ne Configuration Process - Huawei OptiX OSN 550 Configuration Manual

3 Configuring SDH Services
3.
4.
5.
6.
7.
Step 4 Check whether the service configuration is correct. For details, see Verifying the Correctness
of the SDH Service Configuration.
Step 5 Enable the performance monitoring function of the NEs. For details, see Setting Performance
Monitoring Parameters of an NE.
Step 6 Back up the configuration data of the NEs. For details, see Backing Up the NE Database to the
SCB Board.
----End
Relevant Task
If the services are configured incorrectly and thus need to be deleted, see Deleting SDH Services.

3.8 Configuring Services on the SNCP Ring

Compared with the services on an MSP ring, the services on an SNCP ring have dedicated
physical paths as the protection paths. In addition, the services on an SNCP ring are dually fed
and selectively received. When you configure services on an SNCP ring, you need not configure
the protection subnet and the services separately. When you configure services on an SNCP ring,
however, you need to configure the working services and protection services separately.

3.8.1 Networking Diagram

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

3.8.2 Signal Flow and Timeslot Allocation

Similar to the service configuration of an MSP ring, you need to plan proper traffic directions
before configuring the services on an SNCP ring, if multiple service routes are available from
the source end to the sink end. 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.

3.8.3 Per-NE Configuration Process

The SNCP protection and the services on the SNCP ring are configured on the U2000 at a time.
To configure the SNCP services on the source and sink NEs, you need to determine the source
boards and timeslots for the working service and protection service. In addition, you need to
configure the pass-through service on the intermediate nodes.

3.8.4 End-to-End Configuration Process

SNCP protection and services on an SNCP ring are configured on the U2000 at the same time.
To configure SNCP services on the source and sink NEs, determine the source boards and
3-44
Double-click the sink NE (NE3) on the right of the main topology. Configure NE2 in the
same manner.
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.
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.
In the Operation Result dialog box that is displayed, click Close.
Optional: In the Operation Result dialog box that is displayed, you can also click Browse
Trail to query the created VC12 services.
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Copyright © Huawei Technologies Co., Ltd.
OptiX OSN 550 Multi-Service CPE Optical Transmission
System
Configuration Guide
Issue 02 (2011-06-30)