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PowerCube 500 System Configuration Guide (PC500-300H1, PC500-300G1, EG6P-150G1)

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Configuration Example

Configuration Example

This section provides an example of how to plan and configure Ethernet ring protection switching (ERPS) for a single-ring network based on network conditions.

Networking Diagram

As shown in Figure 4-2, NE1, NE2, NE3, and NE4 construct a ring network. ERPS is configured to protect the Ethernet services on the ring network. Normally, the eastbound RPL port 2-EG6P-1 of RPL Owner node NE1 is blocked, and services are transmitted by the westbound port. If an NE or a link is faulty, the blocked eastbound RPL port on NE1 is unblocked so that the service data can be transmitted through the eastbound port 2-EG6P-1 of NE1.

Figure 4-2 Networking diagram

Service Planning

The service planning information contains the information about all the parameters required for configuring the NE data.

Table 4-2 Data planned for the configuration



Value in This Example

Planning Guidelines

Creating a LAG


1 1 1 1
  • It is recommended that you plan the counterclockwise direction as the main direction of services transmission, and plan the port that transmits services in the main direction as an east port, and the port that receives services as a west port.
  • Set ERP Ring Node Flag and Flag Port to matching values according to the network plan by taking the following suggestions:
    • Only one node on the ring can be set as the RPL owner or RPL neighbor node for each Ethernet ring.
    • If the node is the RPL owner, set this parameter to RPL Port.
    • If the node is an RPL neighbor node, set this parameter to Neighbor Port.
    • If the node is the next-hop node of the RPL owner or RPL neighbor node, set this parameter to Next Neighbor Port.
    • If the node on the ring is not any of the preceding nodes, set this parameter to None.
    • Revertive Mode generally takes the default value Revertive. You can set this parameter to Non-Revertive according to the network plan.
    • The ID of a Control VLAN must not be the same as any VLAN ID used by Ethernet services. All ring nodes should use the same Control VLAN ID.

East Port

2-EG6P-1 2-EG6P-1 2-EG6P-1 2-EG6P-1

West Port

2-EG6P-2 2-EG6P-2 2-EG6P-2 2-EG6P-2

ERP Ring Node Flag

RPL Port Next Neighbor Port Next Neighbor Port Neighbor Port

Flag Port

2-EG6P-1 2-EG6P-1 2-EG6P-2 2-EG6P-2

Revertive Mode

Revertive - - -

Control VLAN

4093 4093 4093 4093
Setting Protocol Parameters for an ERPS Instance Compatible_Version ver2 ver2 ver2 ver2 Indicates the Ethernet type of an ERPS ring.
  • If the ERPS ring contains only transport NEs, set this parameter to Transfer Mode.
  • If the ERPS ring contains non-transport NEs, set this parameter to Standard Mode.
ETH Type Domain Transfer Mode Transfer Mode Transfer Mode Transfer Mode

Default value

Default value

Default value

Default value

Setting Global ERPS Protocol Parameters Hold-off time (ms) 0 0 0 0 Set the parameters according to the network plan. Default values are recommended.
Guard time (ms) 2000 2000 2000 2000
WTR time (mm:ss) 05:00 05:00 05:00 05:00
Packet Transmit Interval (s) 5 5 5 5

Default value

Default value

Default value

Default value


  1. Creating ethernet ring protection instances.

    NE1 is used as an example.

  2. Setting protocol parameters for an ERPS instance.

    NE1 is used as an example.

  3. Setting global ERPS protocol parameters.

    NE1 is used as an example.

Updated: 2019-04-26

Document ID: EDOC1100021621

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