
Figure 3-12
Signal flow and timeslot allocation
VC4-1:1-5(VC12)
NE1
NE2
NE3
线路
板
Pass-through service
VC4-1:1-5(VC12)
NE4
service
route
Line board
Tributary board
5xE1 services are
added/dropped
VC4-1:1-5(VC12)
5xE1 services are
added/dropped
MSP ring
3-SP3D
1-SL4D-1
1-SL4D-2
Tributary board Line board Line board
NE1:
3-SP3D
1-SL4D-1
1-SL4D-2
Tributary board Line board Line board
NE3:
1-SL4D-2
1-SL4D-1
Line board Line board
NE2:
3.7.3 Per-NE Configuration Process
The configuration of the two-fiber bidirectional MSP services is independent of the configuration
of the protection subnet. To configure the two-fiber bidirectional MSP service, if the protection
subnet is configured, configure the SDH services from the tributary board to the line board on
the source and sink NEs and configure the pass-through services on the intermediate NEs.
Prerequisite
l
The physical topology of the network must be created.
l
The NEs, boards, and fibers must be created on the U2000.
l
The created protection subnet must be consistent with the actual network topology. For
details about how to create the protection subnet, see
l
You must be familiar with
3.7.2 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
on the lower-right pane to display the
Create SDH Service
dialog box. Set
the parameters that are required, and then click
OK
.
OptiX OSN 550 Multi-Service CPE Optical Transmission
System
Configuration Guide
3 Configuring SDH Services
Issue 02 (2011-06-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
3-39