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Table of Contents
1 MSTP Configuration ··································································································································1-1
MSTP Overview·······························································································································1-1
Introduction to STP··························································································································1-1
How STP works ·······························································································································1-3
Introduction to MSTP·······················································································································1-9
Protocols and Standards ···············································································································1-14
Configuration Task List ·························································································································1-14
Configuring the Root Bridge··················································································································1-16
Configuring an MST Region ··········································································································1-16
Specifying the Root Bridge or a Secondary Root Bridge ······························································1-17
Configuring the Work Mode of an MSTP Device ··········································································1-18
Configuring the Priority of the Current Device···············································································1-19
Configuring the Maximum Hops of an MST Region······································································1-19
Configuring the Network Diameter of a Switched Network ···························································1-20
Configuring Timers of MSTP ·········································································································1-21
Configuring the Timeout Factor·····································································································1-22
Configuring the Maximum Port Rate ·····························································································1-22
Configuring Ports as Edge Ports ···································································································1-23
Setting the Link Type of a Port to P2P ··························································································1-24
Configuring the Mode a Port Uses to Recognize/Send MSTP Packets········································1-25
Enabling the Output of Port State Transition Information······························································1-26
Enabling the MSTP Feature ··········································································································1-27
Configuring Leaf Nodes ························································································································1-28
Configuring an MST Region ··········································································································1-28
Configuring the Work Mode of MSTP····························································································1-28
Configuring the Timeout Factor·····································································································1-28
Configuring the Maximum Transmission Rate of Ports·································································1-28
Configuring Ports as Edge Ports ···································································································1-28
Configuring Path Costs of Ports ····································································································1-28
Configuring Port Priority ················································································································1-30
Setting the Link Type of a Port to P2P ··························································································1-31
Configuring the Mode a Port Uses to Recognize/Send MSTP Packets········································1-31
Enabling Output of Port State Transition Information····································································1-31
Enabling the MSTP Feature ··········································································································1-31
Performing mCheck ······························································································································1-31
Configuration Prerequisites ···········································································································1-31
Configuration Procedure················································································································1-31
Configuration Example ··················································································································1-32
Configuring Digest Snooping ················································································································1-32
Configuration Prerequisites ···········································································································1-32
Configuration Procedure················································································································1-33
Configuration Example ··················································································································1-33
Configuring No Agreement Check ········································································································1-34
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