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S12700 V200R012C00 Configuration Guide - Ethernet Switching

This document describes the configuration of Ethernet services, including configuring MAC address table, link aggregation, VLANs, VLAN aggregation, MUX VLAN, VLAN termination, Voice VLAN, VLAN mapping, QinQ, GVRP, VCMP, STP/RSTP/MSTP, VBST, SEP, RRPP, ERPS, LBDT, and Layer 2 protocol transparent transmission.
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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 system-view

    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: 2019-01-18

Document ID: EDOC1100038103

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