The
OptiX OSN equipment supports various network level protection schemes,
including the linear MSP and ring MSP. Configuring the Protection Subnet on
Huawei SDH. In this article, we will learn how to Configure a Non-Protection
Ring.
The MS ring
protection scheme is adopted in a common ring network. Normally, it is adopted to
protect a channel to transmit additional services. By running the APS protocol,
it achieves the MS level protection.
Prerequisites
A You must be an
NM user with NE and network maintainer authority or higher.
B The NE data
must be configured, and fibers must be properly created.
Context
A The number of
nodes in an MSP ring cannot exceed 16.
B When creating a
protection subnet, select SDH NEs only. It is not required to select REG or WDM
equipment.
The steps:
Step 1 Choose Service > SDH
Protection Subnet > Create
2f_MS_SPRing from the Main Menu.
The Prompt dialog box is displayed. Click OK to display the Create Protection Subnet dialog box.
NOTE
1 To create a
four-fiber bidirectional MS shared protection ring, choose Service > SDH
Protection Subnet > Create 4f_MS_SPRing from the Main Menu to display the
related dialog box.
2 To create a
two-fiber unidirectional MS shared protection ring, choose Service > SDH Protection Subnet > Create 2f_MS_DPRing from
the Main Menu to display the related dialog box.
Step 2 Enter the name of the protection subnet.
The default name
is usually used, for example, 2f_MS SPRing_1.
Step 3 Select the rate of the protection subnet, for example, STM-4.
Step 4 Select Resource Sharing and Assigned by VC4 as needed.
NOTE
1 If multiple
protection subnets use one port of a board, you need to check the Resource
Sharing check box. If MSP Sharing is enabled, you can check the Resource
Sharing check box to map a port of the board to multiple MSPs. If different
protection subnets use different ports of a board, do not check this check box.
2 Select the
Assigned by VC4 option when there are different VC4s belonging to different
protection subnets to achieve MSP only in some channels protection. For
example, for an STM-16 fiber, the VC4s
1-4 belong to an
STM-4 MSP, and VC4s 5-8 belong to a PP.
3 OptiX OSN
1500/2500/3500/3500 II/7500
/7500 II do not
support Transoceanic Protocol.
Step 5 Add nodes to the protection subnet to be created. Double-click the NE
on the Main Topology to add it to the node list in the left-hand pane.
Meanwhile, is displayed on the NE icon. If you want to cancel the selection,
double-click the NE again.
For easy
maintenance, the nodes should be added anticlockwise to the protection subnet.
Step 6 Set the attribute of the nodes. Select MSP Node in this example.
Step 7 Click Next to proceed to the
Select Link screen of the wizard.
Set parameters, such as Physical Link
Information.
NOTE
1 If there are
multiple fibers between two NEs, select them from the Physical Link Information
dropdown list.
2 If Assigned by VC4 is selected, you can
select the working and protection VC4 timeslots as needed.
Step 8 Click Finish to deliver the
configuration data. Then the Operation
Result prompt box is displayed. Click Close.
Step 9 Right-click the protection subnet and choose Protection Subnet Attributes from the shortcut menu.
Step 10 Click the Protection Subnet
Maintenance tab to check whether the protocol controller starts. If not, do
as follows:
1. Select all the
NEs of the protection subnet.
2. Right-click
and choose Start/Stop Protocol >
Start from the shortcut menu.
3. Click Yes in the dialog box that is displayed
twice. Ensure that the status of all the values in the Protocol Controller column is Protocol
Started.
Step 11 Click the Protection Subnet Parameters tab and set the WTR time and SD Condition as needed. Click Apply to deliver the configuration. The WTR time of all NEs in the same protection subnet should be the same.
NOTE
The
default value is 600s.
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