Users Guide

Provisioning a Stack Unit................................................................................................................................................ 841
Converting Four 10 GbE Ports to 40 GbE Ports for Stacking......................................................................................... 842
Removing a Stack Group from Stacking Mode...............................................................................................................842
Remove a Switch from a Stack......................................................................................................................................843
Adding a Stack Unit........................................................................................................................................................843
Adding a Standalone Switch to a Stack..........................................................................................................................843
Merging Two Stacks.......................................................................................................................................................844
Split a Stack...................................................................................................................................................................845
Managing Redundant Stack Management..................................................................................................................... 845
Resetting a Unit on a Stack............................................................................................................................................845
Verify a Stack Conguration...........................................................................................................................................846
Using Show Commands...........................................................................................................................................846
Troubleshooting a Switch Stack..................................................................................................................................... 849
Failure Scenarios......................................................................................................................................................850
Upgrading a Switch Stack........................................................................................................................................853
Upgrading a Single Stack Unit..................................................................................................................................854
57 Storm Control........................................................................................................... 855
Congure Storm Control................................................................................................................................................855
Conguring Storm Control from INTERFACE Mode.................................................................................................855
Conguring Storm Control from CONFIGURATION Mode.......................................................................................856
58 Spanning Tree Protocol (STP)...................................................................................857
Protocol Overview..........................................................................................................................................................857
Congure Spanning Tree................................................................................................................................................ 857
Related Conguration Tasks..................................................................................................................................... 857
Important Points to Remember................................................................................................................................ 857
Conguring Interfaces for Layer 2 Mode........................................................................................................................858
Enabling Spanning Tree Protocol Globally.......................................................................................................................859
Adding an Interface to the Spanning Tree Group.............................................................................................................861
Removing an Interface from the Spanning Tree Group....................................................................................................861
Modifying Global Parameters.......................................................................................................................................... 861
Modifying Interface STP Parameters............................................................................................................................. 862
Enabling PortFast...........................................................................................................................................................862
Prevent Network Disruptions with BPDU Guard............................................................................................................ 863
Global BPDU Filtering.....................................................................................................................................................865
Interface BPDU Filtering................................................................................................................................................ 865
Selecting STP Root........................................................................................................................................................866
STP Root Guard.............................................................................................................................................................866
Root Guard Scenario................................................................................................................................................ 867
Conguring Root Guard........................................................................................................................................... 868
Enabling SNMP Traps for Root Elections and Topology Changes...................................................................................868
Conguring Spanning Trees as Hitless............................................................................................................................868
STP Loop Guard.............................................................................................................................................................869
Conguring Loop Guard........................................................................................................................................... 870
Displaying STP Guard Conguration................................................................................................................................871
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