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Table of Contents
1 MSTP Configuration ··································································································································1-1
Overview ·················································································································································1-1
Spanning Tree Protocol Overview···································································································1-1
Rapid Spanning Tree Protocol Overview ······················································································1-10
Multiple Spanning Tree Protocol Overview ···················································································1-10
MSTP Implementation on Switches ······························································································1-14
Protocols and Standards ···············································································································1-15
MSTP Configuration Task List ··············································································································1-15
Configuring Root Bridge························································································································1-16
Configuring an MST Region ··········································································································1-16
Specifying the Current Switch as a Root Bridge/Secondary Root Bridge·····································1-18
Configuring the Bridge Priority of the Current Switch····································································1-19
Configuring How a Port Recognizes and Sends MSTP Packets ··················································1-20
Configuring the MSTP Operation Mode ························································································1-21
Configuring the Maximum Hop Count of an MST Region·····························································1-22
Configuring the Network Diameter of the Switched Network ························································1-22
Configuring the MSTP Time-related Parameters··········································································1-23
Configuring the Timeout Time Factor····························································································1-24
Configuring the Maximum Transmitting Rate on the Current Port················································1-25
Configuring the Current Port as an Edge Port ··············································································1-26
Setting the Link Type of a Port to P2P ··························································································1-27
Enabling MSTP······························································································································1-28
Configuring Leaf Nodes ························································································································1-29
Configuring the MST Region·········································································································1-29
Configuring How a Port Recognizes and Sends MSTP Packets ··················································1-29
Configuring the Timeout Time Factor····························································································1-29
Configuring the Maximum Transmitting Rate on the Current Port················································1-29
Configuring a Port as an Edge Port·······························································································1-29
Configuring the Path Cost for a Port ·····························································································1-30
Configuring Port Priority ················································································································1-32
Setting the Link Type of a Port to P2P ··························································································1-33
Enabling MSTP······························································································································1-33
Performing mCheck Operation ·············································································································1-33
Configuration Prerequisites ···········································································································1-33
Configuration Procedure················································································································1-33
Configuration Example ··················································································································1-34
Configuring Guard Functions················································································································1-34
Configuring BPDU Guard ··············································································································1-34
Configuring Root Guard·················································································································1-35
Configuring Loop Guard················································································································1-36
Configuring TC-BPDU Attack Guard·····························································································1-37
Configuring Digest Snooping ················································································································1-38
Introduction····································································································································1-38