Users Guide

Manually Upgrading the OS Image.............................................................................................779
De-provisioning a Port Extender...................................................................................................... 781
Troubleshooting a Port Extender..................................................................................................... 781
Supported Features...........................................................................................................................782
41 Port Extender (PE) Stacking..........................................................................783
Stack Management Roles................................................................................................................. 783
Stack Master Election........................................................................................................................783
Important Points to Remember....................................................................................................... 784
PE Stack Configuration.....................................................................................................................784
Configuring a PE Stack................................................................................................................785
Adding a Unit to an Existing PE Stack.........................................................................................786
Renumbering a Stack Unit..........................................................................................................786
Prioritizing Stack Units................................................................................................................ 787
Managing PE Stack Redundancy................................................................................................ 787
Removing a Unit from a PE Stack...............................................................................................788
Verifying a PE Stack Master and Standby...................................................................................789
Displaying PE Stack Information................................................................................................ 789
Locating the Port Extender ..............................................................................................................792
Troubleshooting a PE Stack..............................................................................................................792
Diagnosing an Error Condition...................................................................................................792
Using PE Console Commands................................................................................................... 793
Splitting a Daisy-Chained PE Stack............................................................................................ 793
42 Port Monitoring..............................................................................................794
Port Monitoring.................................................................................................................................794
Important Points to Remember..................................................................................................795
Examples of Port Monitoring......................................................................................................795
Configuring Port Monitoring ..................................................................................................... 796
Remote Port Mirroring......................................................................................................................798
Remote Port Mirroring Example.................................................................................................799
Configuring Remote Port Mirroring...........................................................................................800
Displaying a Remote-Port Mirroring Configuration..................................................................802
Configuring Remote Port Monitoring........................................................................................802
Encapsulated Remote-Port Monitoring.......................................................................................... 806
43 Power over Ethernet (PoE)...........................................................................809
Configuring PoE or PoE+................................................................................................................. 810
Enabling PoE or PoE+ on a Port.................................................................................................810
Configuration Tasks for PoE or PoE+........................................................................................ 810
Manage Ports using Power Priority and the Power Budget.............................................................811
Determining the Power Priority for a Port..................................................................................811
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