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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).
Configuring Tunnel APS

Configuring Tunnel APS

Tunnel APS protection is implemented based on the APS protocol. If tunnel APS is configured, the services are switched from the working tunnel to the protection tunnel after the working tunnel is faulty.

Configuring a Tunnel APS in End-to-End Mode

You can configure tunnel APS to protect the MPLS tunnel. Tunnel APS can be configured as the 1:1 mode. When configuring tunnel APS, you need to configure tunnel APS on both the source NE and the sink NE of the MPLS tunnel.

Prerequisites

  • You are an NM user with Administrators rights or higher.
  • The MPLS working and protection tunnels must be created.
  • The MPLS OAM of each MPLS tunnel in the protection group must be enabled (Unidirectional tunnel need to enable the OAM of forward and reverse tunnel).
NOTE:
The protection tunnel should not carry any extra services.

Procedure

  1. Choose Service > Tunnel > Create Protection Group from the Main Menu.
  2. In Create Protection Group, set Basic Information of the protection group.

  3. Click Add at the lower left of the Create Protection Group window. In the Set Filter Criteria dialog box that is displayed, set the filter conditions and then click Filter.

    NOTE:
    • You can perform filtering by Tunnel Name, Destination IP Address, or Tunnel IP.
    • You can also perform filtering by other conditions.

  4. Select the tunnel in Select Tunnel dialog box that is displayed and then Click OK.

    NOTE:
    • When configuring MPLS tunnel APS for unidirectional tunnels, you need to select four tunnels, which function as the Forward Working tunnel, Forward Protection tunnel, Backward Working tunnel, and Backward Protection tunnel.

    • When configuring MPLS tunnel APS for bidirectional tunnels, you need to select two tunnels, which function as the Working tunnel, and Protection tunnel.

  5. In the Tunnels field box, specify the tunnel type.

    NOTE:
    • Set four unidirectional tunnels to be the Forward Working tunnel, Forward Protection tunnel, Backward Working tunnel, and Backward Protection tunnel.

    • Set two bidirectional tunnels to be the Working tunnel, and Protection tunnel.

  6. Set the MPLS tunnel APS attributes at the lower right of the window.

    NOTE:
    • When configuring tunnel APS on a per-NE mode, set Protocol Status to Disabled. Start the protocol only when tunnel APS is successfully configured at both ends of the MPLS tunnel.

    • When configuring tunnel APS in end-to-end mode, set Protocol Status to Enabled.

  7. Click OK. The configuration for tunnel APS is complete.

Configuring Tunnel APS on a Per-NE Basis

You can configure tunnel APS to protect MPLS tunnels. You can configure a 1:1 tunnel APS protection group. You need to configure tunnel APS on the source and sink NEs of the MPLS tunnel.

Prerequisites

  • You are an NM user with Administrators rights or higher.
  • The working and protection MPLS tunnels must be created.
  • The MPLS OAM of each MPLS tunnel in the protection group must be enabled (Unidirectional tunnel need to enable the OAM of forward and reverse tunnel).
NOTE:
The protection MPLS tunnel cannot carry any extra services.

Procedure

  1. In the NE Explorer, select the source NE of the MPLS tunnel and choose Configuration > Packet Configuration > APS Protection Management from the Function Tree.
  2. Click New. Then, the New Tunnel Protection Group dialog box is displayed.

  3. Set the parameters for the MPLS tunnel protection group. Select the working and protection MPLS tunnels.

    • Protection Type: You can set Protection Type to 1:1.
    • Switching Mode: You can set Switching Mode to Single-Ended or Dual-Ended.
    • BDI Status: If Switching Mode is set to Single-Ended, set BDI Status to Enabled so that BDI packets will be sent to the ingress node to trigger protection switching on the ingress node when the egress node detects a fault.
    • Revertive Mode: You can set Revertive Mode to Non-Revertive or Revertive. If you set Revertive Mode to Revertive, you can specify the WTR time.
    • Hold-off Time (100ms): The unit is 100 ms. You can set Hold-off Time (100ms) to be an integer from 0 to 100, namely, 0 to 10 seconds.

    When creating an APS protection group, you need to set Protocol Status to Disabled. Enable the protocol only after the configuration of the APS protection group is complete on the source and sink NEs.

  4. Click OK. The MPLS tunnel protection group is configured successfully.

    NOTE:

    The bandwidth of the protection MPLS tunnel must be higher than the bandwidth of the working MPLS tunnel. To increase the bandwidth of the working MPLS tunnel after the protection group is created, increase the bandwidth of the protection MPLS tunnel first.

  5. Refer to steps 1-4 to configure the protection group on the sink NE.
  6. Enable the protocol of the MPLS APS protection group.

    1. In the NE Explorer, select the source NE of the MPLS tunnel and choose Configuration > Packet Configuration > APS Protection Management from the Function Tree.
    2. Right-click a created APS protection group and choose Start Protocol from the shortcut menu.
    3. A dialog box is displayed, indicating that the operation is successful. Protocol Status of the APS protection group changes to Enabled.

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Updated: 2019-01-21

Document ID: EDOC1100020976

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