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AR500, AR510, and AR530 V200R007 CLI-based Configuration Guide - Ethernet Switching

This document describes the configuration of Ethernet services, including configuring transparent bridge, MAC table, link aggregation, VLANs, STP/RSTP/MSTP, and so on.The document provides the configuration procedures and configuration examples to illustrate the service configuration methods and application scenario.
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Configuring a Port as an Edge Port and BPDU Filter Port

Configuring a Port as an Edge Port and BPDU Filter Port

Context

If a designated port is located at the edge of a network and is directly connected to terminal devices, this port is called edge port.

An edge port does not receive or process configuration BPDUs, or MSTP calculation. It can transit from Disable to Forwarding without any delay.

After a designated port is configured as an edge port, the port can still send BPDUs. Then BPDUs are sent to other networks, causing flapping of other networks. You can configure a port as an edge port and BPDU filter port so that the port does not process or send BPDUs.

After all ports are configured as edge ports and BPDU filter ports in the system view, none of ports on the device send BPDUs or negotiate the STP status with directly connected ports on the peer device. All ports are in forwarding state. This may cause loops on the network, leading to broadcast storms. Exercise caution when you configure a port as an edge port and BPDU filter port.

After a port is configured as an edge port and BPDU filter port in the interface view, the port does not process or send BPDUs. The port cannot negotiate the STP status with the directly connected port on the peer device. Exercise caution when you configure a port as an edge port and BPDU filter port.

Procedure

  • Configuring all ports as edge ports and BPDU filter ports in the system view
    1. Run:

      system-view

      The system view is displayed.

    2. Run:

      stp edged-port default

      All ports are configured as edge ports.

      By default, all ports are non-edge ports.

    3. Run:

      stp bpdu-filter default

      All ports are configured as BPDU filter ports.

      By default, a port is a non-BPDU filter port.

  • Configuring a port as an edge port and BPDU filter port in the interface view
    1. Run:

      system-view

      The system view is displayed.

    2. Run:

      interface interface-type interface-number

      The view of the Ethernet interface that participates in spanning tree calculation is displayed.

    3. (Optional) Run:

      stp edged-port enable

      The port is configured as an edge port.

      By default, all ports are non-edge ports.

    4. Run:

      stp bpdu-filter enable

      The port is configured as a BPDU filter port.

      By default, a port is a non-BPDU filter port.

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Updated: 2019-05-25

Document ID: EDOC1000097279

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