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AR Router Troubleshooting Guide

This Product Documentation provides guidance for maintaining AR Enterprise Router, covering common information collection and fault diagnostic commands, typical fault troubleshooting guide, and troubleshooting.
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What Are the Differences Between STP, RSTP, and MSTP?

What Are the Differences Between STP, RSTP, and MSTP?

MSTP is compatible with RSTP and STP, and RSTP is compatible with STP. Table 29-57 compares the STP, RSTP, and MSTP protocols.

Table 29-57  Comparison of STP, RSTP, and MSTP

Spanning Tree Protocol

Characteristics

Usage Scenario

STP

  • A loop-free tree topology is formed in an STP region to prevent broadcast storms while implementing link redundancy.
  • Route convergence is slow.

All VLANs share one spanning tree, and users or services do not need to be differentiated.

RSTP

  • A loop-free tree topology is formed in an STP region to prevent broadcast storms while implementing link redundancy.
  • RSTP achieves fast network convergence.

MSTP

  • In an MSTP region, multiple loop-free trees are generated. Therefore, broadcast storms are prevented and redundancy is achieved.
  • MSTP achieves fast network convergence.
  • MSTP implements load balancing among VLANs. Traffic in different VLANs is transmitted along different paths.

Traffic in different VLANs is forwarded through different spanning trees for load balancing. The spanning trees are independent of each other. In this situation, users or services are distinguished by VLANs.

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Updated: 2019-05-10

Document ID: EDOC1000079719

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