iTable of Contents1 MSTP Configuration ··································································································································1-1Overview ·················································································································································1-1Introduction to STP ·································································································································1-1Why STP ·········································································································································1-1Protocol Packets of STP··················································································································1-1Basic Concepts in STP····················································································································1-2How STP works ·······························································································································1-3Introduction to RSTP·······························································································································1-9Introduction to MSTP ····························································································································1-10Why MSTP ····································································································································1-10Basic Concepts in MSTP···············································································································1-11How MSTP Works ·························································································································1-14Implementation of MSTP on Devices ····························································································1-15Protocols and Standards ···············································································································1-15MSTP Configuration Task List ··············································································································1-15Configuring MSTP·································································································································1-17Configuring an MST Region ··········································································································1-17Configuring the Root Bridge or a Secondary Root Bridge ····························································1-18Configuring the Work Mode of an MSTP Device ··········································································1-19Configuring the Priority of a Device·······························································································1-19Configuring the Maximum Hops of an MST Region······································································1-20Configuring the Network Diameter of a Switched Network ···························································1-20Configuring Timers of MSTP ·········································································································1-21Configuring the Timeout Factor·····································································································1-22Configuring the Maximum Port Rate ·····························································································1-23Configuring Ports as Edge Ports ···································································································1-23Configuring Path Costs of Ports ····································································································1-24Configuring Port Priority ················································································································1-26Configuring the Link Type of Ports ································································································1-27Configuring the Mode a Port Uses to Recognize/Send MSTP Packets········································1-27Enabling the Output of Port State Transition Information······························································1-28Enabling the MSTP Feature ··········································································································1-29Performing mCheck·······················································································································1-29Configuring Digest Snooping·········································································································1-30Configuring No Agreement Check·································································································1-32Configuring Protection Functions ··································································································1-34Enabling BPDU Dropping ··············································································································1-37Displaying and Maintaining MSTP ········································································································1-38MSTP Configuration Example···············································································································1-38
