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Sun Ethernet Fabric Operating System
STP Administration Guide
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Sun Ethernet Fabric Operating System
STP Administration Guide
August 2012
Administer and configure STP for the switch with SEFOS.
Document Information
Using This Documentation
Product Notes
Related Documentation
Acronyms and Abbreviations
CLI Command Modes
Feedback
Support and Accessibility
STP Overview
STP Topology Example
STP Overview
Bridge ID and Switch Priority
Root Switch Election
Configuring RSTP
Understanding RSTP
RSTP Overview
Port States
Port Roles
Rapid Convergence
Proposal Agreement Sequence
Topology Change and Topology Change Detection
Default STP Settings
Set Spanning Tree Compatibility to STP
Restore Spanning Tree Compatibility
Configuring Bridge Priority
Configure the Bridge Priority
Restore the Default Bridge Priority
Configuring STP Cost
STP Cost Overview
Configure the Cost
Restore the Default Cost
Configuring the STP Port Priority
STP Port Priority Overview
Port Priority Configuration Topology Example
Configure the Port Priority
Restore the Default Port Priority
Configuring the Spanning Tree Link Type
Spanning Tree Link Type Overview
Configure the Interface Link Type
Restore the Default Interface Link Type
Configuring the Spanning Tree Portfast Port
Spanning Tree Portfast Port Overview
Configure a Portfast Port
Restore the Default Portfast Port
Configuring Spanning Tree Timers
Spanning Tree Timers Overview
Configure Timers
Restore the Default Timer Values
Configuring the Pseudo Root ID
Configure the Pseudo Root ID
Display the Pseudo Root ID
Spanning Tree Status Overview
Display Spanning Tree Information for Active Ports
Display Detailed Spanning Tree Information
Display the Spanning Tree Port-Specification Configuration
Display a Summary of the Spanning Tree Information for the Configuration
Configuring MSTP
Specify MST Forward Time, Hello Time, and Max Age
Understanding MSTP
MSTP Overview
MST Region
IST, CIST, and CST
Operations in an MST Region
Hop Count
Default MSTP Settings
MSTP Configuration Guidelines
Configuring MSTP Modes
Set the Spanning Tree Operating Mode
Specify MST Mode Configurations
Configuring the Spanning Tree Switch Priority
Configure the Spanning Tree Switch Priority
Restore the Default Spanning Tree Priority
Configure MST Properties of an Interface
Restore the Default MSTP Priority
Configuring the Interval Between Generation of Configuration Messages
Configure the MST Interval Between Generation of Configuration Messages
Restore the Default Interval Between Generation of Configuration Messages
Configuring the Maximum Hop Count
Configure the Maximum Hop Count
Restore the Default Maximum Hop Count
Configuring the Pseudo Root ID
Configure the Pseudo Root ID
Display the Pseudo Root ID
Configuring Features Common to RSTP and MSTP
Clear Spanning Tree MSTP Counters
Configuring the Transit Hold Count
Configure the Transmit Hold Count
Restore the Default Transmit Hold Count Value
Configuring the Dynamic Path Cost
Dynamic Path Cost Topology Example
Configure the Dynamic Path Cost
Configure the Dynamic Path Cost in an Aggregate Port
Disable the Dynamic Path Cost Calculation
Configure the Dynamic Path Cost Lag Speed in an Aggregate Port
Disable the Dynamic Path Cost Lag Speed Calculation
Enable Spanning Tree Loop Guard
Show Spanning Tree Performance Data
Configuring Automatic Detection of Edge Devices or Bridges
Configure Automatic Detection of Edge Devices or Bridges
Disable Automatic Detection of Edge Devices or Bridges
Configuring the Restricted Role
Configure the Restricted Role
Disable the Restricted Role
Configuring the Topology Change
Enable the Topology Change
Disable the Topology Change
Restart the Protocol Migration Process
Configuring the Spanning Tree BPDU Receive Status
Configure the Spanning Tree BPDU Receive Status
Disable the Spanning Tree BPDU Receive Status
Configuring the Spanning Tree BPDU Transmit Status
Configure the Spanning Tree BPDU Transmit Status
Disable the Spanning Tree BPDU Transmit Status
Configuring the Spanning Tree L2GP Status
Configure the Spanning Tree L2GP Status
Display the Spanning Port Information
Display the MST Configuration and Status
Flow-Based Configurations
Topology After Configuring the Bridge Priority and Port Path Cost in RSTP
RSTP Configuration Guidelines
Default RSTP Settings
Configure the Topology
Topology Convergence for MSTP
MSTP Configuration Guidelines
Default MSTP Settings
Configure the Topology