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CLI-based Configuration Guide - Ethernet Switching

AR650, AR1600, and AR6100 V300R003

This document describes how to configure the components for LAN services, including link aggregation groups, VLANs, voice VLANs, MAC address tables, transparent bridging, as well as GVRP, STP/RSTP, and MSTP protocols.
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Setting the MSTP Timeout Interval

Setting the MSTP Timeout Interval

Context

If a device does not receive any BPDUs from the upstream device within the timeout interval, the device considers the upstream device to have failed and recalculates the spanning tree.

Sometimes, a device cannot receive the BPDU from the upstream device within the timeout interval because the upstream device is busy. In this case, recalculating the spanning tree will cause a waste of network resources. To avoid wasting network resources, set a long timeout interval on a stable network.

If a switching device does not receive any BPDUs from the upstream device within the timeout interval, spanning tree recalculation is performed. The timeout interval is calculated as follows:

Timeout interval = Hello time x 3 x Timer Factor

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run stp timer-factor factor

    The timeout period for waiting for BPDUs from the upstream device is set.

    By default, the timeout period is 9 times the Hello timer value.

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Updated: 2019-04-12

Document ID: EDOC1100041791

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