3Com 4510G Configuration Manual page 35

4 MSTP Configuration ··································································································································4-1
Overview ·················································································································································4-1
Introduction to STP ·································································································································4-1
Why STP ·········································································································································4-1
Protocol Packets of STP··················································································································4-1
Basic Concepts in STP····················································································································4-2
How STP works ·······························································································································4-3
Introduction to RSTP·······························································································································4-9
Introduction to MSTP ····························································································································4-10
Why MSTP ····································································································································4-10
Basic Concepts in MSTP···············································································································4-11
How MSTP Works ·························································································································4-14
Implementation of MSTP on Devices ····························································································4-15
Protocols and Standards ···············································································································4-15
MSTP Configuration Task List ··············································································································4-15
Configuring MSTP·································································································································4-17
Configuring an MST Region ··········································································································4-17
Configuring the Root Bridge or a Secondary Root Bridge ····························································4-18
Configuring the Work Mode of an MSTP Device ··········································································4-19
Configuring the Priority of a Device·······························································································4-19
Configuring the Maximum Hops of an MST Region······································································4-20
Configuring the Network Diameter of a Switched Network ···························································4-20
Configuring Timers of MSTP ·········································································································4-21
Configuring the Timeout Factor·····································································································4-22
Configuring the Maximum Port Rate ·····························································································4-23
Configuring Ports as Edge Ports ···································································································4-23
Configuring Path Costs of Ports ····································································································4-24
Configuring Port Priority ················································································································4-26
Configuring the Link Type of Ports ································································································4-27
Configuring the Mode a Port Uses to Recognize/Send MSTP Packets········································4-27
Enabling the Output of Port State Transition Information······························································4-28
Enabling the MSTP Feature ··········································································································4-29
Performing mCheck·······················································································································4-29
Configuring Digest Snooping·········································································································4-30
Configuring No Agreement Check·································································································4-32
Configuring Protection Functions ··································································································4-34
Enabling BPDU Dropping ··············································································································4-37
Displaying and Maintaining MSTP ········································································································4-38
MSTP Configuration Example···············································································································4-38
5 LLDP Configuration···································································································································5-1
Overview ·················································································································································5-1
Background ·····································································································································5-1
Basic Concepts································································································································5-1
Operating Modes of LLDP···············································································································5-5
How LLDP Works ····························································································································5-6
Protocols and Standards ·················································································································5-6
LLDP Configuration Task List ·················································································································5-6
Performing Basic LLDP Configuration ····································································································5-7
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