Administrator Guide

Stack Management Roles.............................................................................................................................................758
Stack Master Election...................................................................................................................................................759
Important Points to Remember....................................................................................................................................759
PE Stack Conguration.................................................................................................................................................760
Conguring a PE Stack........................................................................................................................................... 760
Adding a Unit to an Existing PE Stack.................................................................................................................. 762
Renumbering a Stack Unit......................................................................................................................................762
Prioritizing Stack Units............................................................................................................................................763
Managing PE Stack Redundancy...........................................................................................................................763
Removing a Unit from a PE Stack......................................................................................................................... 764
Verifying a PE Stack Master and Standby............................................................................................................765
Displaying PE Stack Information............................................................................................................................ 765
Locating the Port Extender ......................................................................................................................................... 767
Troubleshooting a PE Stack..........................................................................................................................................768
Diagnosing an Error Condition................................................................................................................................768
Using PE Console Commands................................................................................................................................768
Splitting a Daisy-Chained PE Stack.......................................................................................................................768
42 Port Monitoring....................................................................................................................................... 769
Port Monitoring..............................................................................................................................................................769
Important Points to Remember..............................................................................................................................770
Examples of Port Monitoring..................................................................................................................................770
Conguring Port Monitoring ...................................................................................................................................771
Remote Port Mirroring...................................................................................................................................................773
Remote Port Mirroring Example.............................................................................................................................774
Conguring Remote Port Mirroring....................................................................................................................... 774
Displaying a Remote-Port Mirroring Conguration..............................................................................................776
Conguring Remote Port Monitoring.................................................................................................................... 776
Encapsulated Remote-Port Monitoring.......................................................................................................................779
Port Monitoring on VLT..................................................................................................................................................781
VLT Non-fail over Scenario......................................................................................................................................781
VLT Fail-over Scenario............................................................................................................................................ 782
RPM over VLT Scenarios........................................................................................................................................ 782
43 Power over Ethernet (PoE)......................................................................................................................784
Conguring PoE or PoE+..............................................................................................................................................785
Enabling PoE or PoE+ on a Port............................................................................................................................ 785
Conguration Tasks for PoE or PoE+....................................................................................................................785
Manage Ports using Power Priority and the Power Budget.................................................................................... 786
Determining the Power Priority for a Port............................................................................................................786
Determining the Aect of a Port on the Power Budget..................................................................................... 786
Managing Power Priorities...................................................................................................................................... 787
Conguring Power Management on the PE — Class and Static Mode...........................................................787
Allocate PoE Power to Powered Devices to a Connected PE Interface...........................................................788
Setting the Threshold Limit for the PoE Power Budget...........................................................................................790
Advertising the Extended Power through MDI...........................................................................................................791
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