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S12700 V200R010C00 Configuration Guide - Ethernet Switching

This document describes the configuration of Ethernet services, including configuring link aggregation, VLANs, Voice VLAN, VLAN mapping, QinQ, GVRP, MAC table, STP/RSTP/MSTP, SEP, and so on.
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(Optional) Configuring Timers in an ERPS Ring

(Optional) Configuring Timers in an ERPS Ring


After a link or node failure in an ERPS ring recovers, the device starts timers in the ERPS ring to reduce traffic interruptions. This prevents network flapping.


  1. Run:


    The system view is displayed.

  2. Run:

    erps ring ring-id

    The ERPS ring view is displayed.

  3. Configure the WTR timer, Guard timer, and Holdoff timer in the ERPS ring according to actual networking.

    • Run:

      wtr-timer time-value

      The WTR timer is set.

      By default, the WTR timer is 5 minutes in an ERPS ring.

    • Run:

      guard-timer time-value

      The Guard timer is set.

      By default, the Guard timer is 200 centiseconds in an ERPS ring.

    • Run:

      holdoff-timer time-value

      The Holdoff timer is set.

      By default, the Holdoff timer is 0 deciseconds in an ERPS ring.

Updated: 2019-08-21

Document ID: EDOC1000142081

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