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OSN 500 550 580 V100R008C50 Commissioning and Configuration Guide 02

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Modifying the Protection Subnet

Modifying the Protection Subnet

This topic describes how to modify the configuration data of the existing protection subnet.

Changing the Values of Protection Subnet Parameters

In the case of the SDH equipment, you can set the parameters of the MSP protection subnet by using the protection subnet maintenance function.

Prerequisites

  • You must be an NM user with "network maintainer" authority or higher.
  • The data of each NE must be configured and the fibers must be created on the U2000.
  • The MSP protection subnet must be configured.

Procedure

  1. Choose Service > SDH Protection Subnet > Maintain SDH Protection Subnet from the Main Menu. Then, the SDH Protection Subnet Common Attributes dialog box is displayed.
  2. Select an MSP protection subnet from the pane on the left. The attribute information of the protection subnet is displayed in the pane on the right.
  3. Click the Protection Subnet Parameters tab.
  4. Click Query to query the parameters of the protection subnet on the MSP ring.
  5. Click the WTR Time (s) text box and enter a value.

    NOTE:
    The default WTR time is 600s. You can also set the WTR time to a value from 300s to 720s.

  6. Optional: Select SD Condition.
  7. Click Apply. Then, click Close in the Operation Result dialog box indicating that the operation succeeded.

Deleting Protection Subnets

Before you delete an NE or a fiber/cable connection on the U2000, you need to delete the related protection subnets.

Prerequisites

  • You must be an NM user with "network maintainer" authority or higher.
  • If trails are configured on the protection subnet that you need to delete, delete the trails first.

Procedure

  1. Choose Service > SDH Protection Subnet > Manage SDH Protection Subnet from the Main Menu.
  2. Right-click the protection subnet to be deleted and choose Delete from the NM, Delete from the NE, or Delete All from the NM from the short-cut menu.

    NOTE:

    The methods of deleting a protection subnet are as follows:

    • Delete from the NM: If Delete from the NM is selected, the relations between the protection subnet and each logical system on the NE side are deleted so that the fibers can be deleted and reloading can be performed. This command is not delivered to the NE and does not affect the services. The deleted protection subnet can be located by using the search feature. The U2000 locates it according to the NE layer protection information.
    • Delete from the NE: If Delete from the NE is selected, the protection subnet, logical systems on the NE side, and all the services on the protection subnet are deleted. The deleted protection subnet cannot be restored and needs to be created again.
    • Delete All from the NM: If Delete All from the NM is selected, the data of the protection subnet except the fibers at the network layer is deleted. The deleted protection subnet can be located by using the search feature. It is recommended that you do not select this option, because a large amount of data is deleted.

  3. Click Yes in the Operation Prompt dialog box indicating that the operation succeeded. Then, the Operation Result dialog box is displayed.

    NOTE:
    If Delete from the NE is selected, you need to confirm the operation again.

  4. Click Close.
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Updated: 2019-01-21

Document ID: EDOC1100020976

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