
Figure 3-14
Signal flow and timeslot allocation
NE1
NE2
NE4
Pass-through service
VC4-1:1-5(VC12)
VC4-1:1-5(VC12)
VC4-1:1-5(VC12)
NE3
VC4-1:1-5(VC12)
VC4-1:1-5(VC12)
Traffic direction of
the working path
Traffic direction of
the protection path
Line board
Tributary board
SNCP ring
5xE1 services are
added/dropped
1-SL1D-1
1-SL1D-2
1-SL1D-1
1-SL1D-1
1-SL1D-2
NE2 and NE4:
1-SL1D-1
VC12
SDH
service
1-SL1D-2
1-SL1D-2
1-SL1D-1
NE1:
Service
source
SNCP protection
group
Group 1
1-SL1D-1
1-SL1D-2
3-SP3D
VC4-1:1-5(VC12)
1-SL1D-2
Service
sink
Pass-through service
Service
source
SNCP protection
group
Group 1
1-SL1D-2
1-SL1D-1
3-SP3D
Protection
service
source
Service
sink
NE3:
5xE1 services are
added/dropped
Service
source
Service
sink
线路
板
Protection
service
source
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.
Prerequisite
l
The physical topology of the network must be created.
l
The NEs, boards, and fibers must be created on the U2000.
l
You must be familiar with
3.8.2 Signal Flow and Timeslot Allocation
.
Procedure
Step 1
Configure the SDH services of the source NE (NE1).
1.
In the NE Explorer, select NE1, 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
.
3 Configuring SDH Services
OptiX OSN 550 Multi-Service CPE Optical Transmission
System
Configuration Guide
3-46
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 02 (2011-06-30)