In the commissioning or configuration phase, you can run a manual switching command to check whether protection switching can be performed normally.
5.21.1 Testing SW SNCP Switching
After configuring SW SNCP protection, you can run a manual switching command to check whether the SW SNCP switching can be performed successfully.
5.21.2 Testing Port Protection Switching
In the case of intra-board 1+1 protection, optical line protection, client-side 1+1 protection, and inter-subrack 1+1 optical channel protection, you can run a manual switching command in a same user interface.
5.21.1 Testing SW SNCP Switching
After configuring SW SNCP protection, you can run a manual switching command to check whether the SW SNCP switching can be performed successfully.
Prerequisite
The NMS computer must communicate with the NE properly. Protection groups must be configured correctly.
The working and protection channels of a protection group on the network must be in normal state.
Tools, Meters, and Materials
Precautions
CAUTION
In the case of revertive protection, services can be switched only to the protection channel by performing a manual switching.
Procedure
l Operations on the Web LCT
1. In the NE list, select the NE where an SW SNCP protection group is configured. Right- click the NE and then choose NE Explorer from the shortcut menu to display the NE Explorer window.
2. Choose Configuration > Subwavelength SNCP Service from the Function Tree. 3. Click Query to view the values of the Channel Status and Revertive Mode fields of
the working and protection cross-connections of all the existing SW SNCP protection groups on the NE.
Regardless of the working or protection cross-connections, the value of the Channel Status field should be Normal.
NOTE
If the value of the Channel Status field of a working or protection cross-connection is not
Normal, check whether the channel corresponding to this cross-connection is in normal state.
Proceed with the protection switching test after rectifying the fault.
4. Right-click the desired protection group and choose Manual to Working channel or Manual to Protection channel. Observe the changes in parameter values and determine whether protection switching can be performed successfully. When Revertive Mode of the protection group is set to Non-Revertive:
– After you choose Manual to Protection Channel from the right-click menu, the protection switching should be performed successfully and the working cross- connection becomes the protection cross-connection.
– After you choose Manual to Working Channel from the right-click menu, the protection switching should be performed successfully and the protection cross- connection becomes the work cross-connection.
When Revertive Mode of the protection group is set to Revertive:
– After you choose Manual to Protection Channel from the right-click menu, the protection switching should be performed successfully and the working cross- connection becomes the protection cross-connection. After the time specified in the WTR Time (s) field elapses, the protection cross-connection of the protection group automatically restores to the working cross-connection.
NOTE
If the protection switching fails or an exception occurs in the protection switching process after you run a manual switching command, check whether the channel corresponding to the working or protection cross-connection is in normal state, and whether the protection group and the working and protection cross-connections are configured properly. Proceed with the protection switching test after removing the fault.
l Operations on the T2000
1. Select the NE where the SW SNCP protection group is configured. In the NE Explorer window of this NE, choose Configuration > WDM Service
Management from the Function Tree. In the displayed window, click the SNCP Service Control tab.
2. Click Query to view the status of all the existing protection groups on the NE. Click Function to display a drop-down list. Then, run manual switching commands on each protection group in turn to determine whether protection switching can be performed successfully for the protection group. The operations and precautions are the same as those when the protection switching test is performed by using the Web LCT. ----End
Reference Information
Clas sific ation Item Description (Opti onal) Asso ciate d opera tions on the Web LCT Delete a cross- connectionSee this section to learn how to delete a cross-connection.
Convert a service with SNCP protection into a service with no
protection
A service with SNCP protection can be converted into a service with no protection.
Para meter descr iption WDM cross- connection configuration
See this section to learn how to set the parameters used for configuring a WDM cross-connection.
SNCP service control See this section to learn how to set the parameters for controlling services with SNCP protection.
Postrequisite
See List of Tasks for Commissioning and Configuration During Deployment for the subsequent task.
5.21.2 Testing Port Protection Switching
In the case of intra-board 1+1 protection, optical line protection, client-side 1+1 protection, and inter-subrack 1+1 optical channel protection, you can run a manual switching command in a same user interface.
Prerequisite
The NMS computer must communicate with the NE properly. Protection groups must be configured correctly.
The working and protection channels of a port protection group on the network must be in normal state.
Tools, Meters, and Materials
Web LCT or T2000
Precautions
CAUTION
In the case of revertive protection, services can be switched only to the protection channel by performing a manual switching.
Procedure
l Operations on the Web LCT
1. In the NE list, select the NE where a port protection group is configured. Right-click the NE and then choose NE Explorer from the shortcut menu to display the NE Explorer window.
2. Choose Configuration > Port Protection from the Function Tree.
3. Click Query to view the values of the Current Channel, Working Channel Status, and Protection Channel Status fields of all the existing protection groups on the NE.
The values of the Working Channel Status and Protection Channel Status fields should be Normal.
NOTE
If the value of the Working Channel Status or Protection Channel Status is not Normal, check the working or protection channel. Proceed with the protection switching test after removing the fault.
4. Right-click the desired protection group and choose Manual to Working channel or Manual to Protection channel. Observe the changes in parameter values and determine whether protection switching can be performed successfully. When Revertive Mode of the protection group is set to Non-Revertive:
– If Current Channel of the protection group is set to Work, select Manual to Protection channel from the right-click menu. If the manual switching is successful, the value of Current Channel changes to Protection. Later, choose Clear Switching from the right-click menu to clear the current protection setting. After that, choose Manual to Working channel from the right-click menu. If the manual switching is successful, the value of Current Channel changes to Work.
– If Current Channel of the protection group is set to Protection, select Manual to Working channel from the right-click menu. If the manual switching is successful, the value of Current Channel changes to Work. Later, choose Clear Switching from the right-click menu to clear the current protection setting. After that, choose Manual to Protection channel from the right-click menu. If the manual switching is successful, the value of Current Channel changes to Protection.
When Revertive Mode of the protection group is set to Revertive:
– If Current Channel of the protection group is set to Work, choose Manual to Protection channel from the right-click menu. If the manual switching is successful, the value of Current Channel changes to Protection. After the time specified in the WTR Time (s) field elapses, the value of Current Channel automatically restores to Work.
– If Current Channel is set to Protection, the value of Current Channel
automatically restores to Work after the time specified in the WTR Time (s) field elapses.
NOTE
If the protection switching fails or an exception occurs in the protection switching process after you run a manual switching command, check whether the protection or working channel is in normal state, and whether the protection group configuration is correct. Proceed with the protection switching test after removing the fault.
l Operations on the T2000
1. In the NE Explorer window of the NE where a port protection group is configured, choose Configuration > Port Protection from the Function Tree.
2. Click Query to view the status of all the existing protection groups on the NE. Then, run manual switching commands on each protection group in turn to determine whether protection switching can be performed successfully for the protection group. The operations and precautions are the same as those when the protection switching test is performed by using the Web LCT.
----End
Reference Information
Clas sific ation Item Description Para meter descr iptionPort protection See this section to learn how to set the parameters for configuring port protection.
Postrequisite
See List of Tasks for Commissioning and Configuration During Deployment for the subsequent task.