Concept Guide

Important Points to Remember................................................................................................................................... 725
PE Stack Configuration................................................................................................................................................. 725
Configuring a PE Stack............................................................................................................................................725
Adding a Unit to an Existing PE Stack................................................................................................................. 727
Renumbering a Stack Unit...................................................................................................................................... 728
Prioritizing Stack Units............................................................................................................................................ 728
Managing PE Stack Redundancy...........................................................................................................................728
Removing a Unit from a PE Stack.........................................................................................................................730
Verifying a PE Stack Master and Standby..........................................................................................................730
Displaying PE Stack Information............................................................................................................................730
Configuring the Unused PE Uplink Ports as Front-End Ports............................................................................. 733
Configuring Uplink Ports as Access Ports...........................................................................................................734
Reverting the Access Port to Uplink Port...........................................................................................................735
Locating the Port Extender .........................................................................................................................................735
Troubleshooting a PE Stack......................................................................................................................................... 736
Chapter 43: Port Monitoring......................................................................................................737
Port Monitoring................................................................................................................................................................737
Important Points to Remember............................................................................................................................. 738
Examples of Port Monitoring..................................................................................................................................738
Configuring Port Monitoring ................................................................................................................................. 739
Remote Port Mirroring....................................................................................................................................................741
Remote Port Mirroring Example............................................................................................................................. 741
Configuring Remote Port Mirroring...................................................................................................................... 742
Displaying a Remote-Port Mirroring Configuration...........................................................................................743
Configuration Example of Remote Port Mirroring.............................................................................................744
Encapsulated Remote Port Monitoring..................................................................................................................... 745
Port Monitoring on VLT.................................................................................................................................................746
Chapter 44: Power over Ethernet (PoE).................................................................................... 749
Configuring PoE or PoE+..............................................................................................................................................750
Enabling PoE or PoE+ on a Port............................................................................................................................750
Configuration Tasks for PoE or PoE+..................................................................................................................750
Manage Ports using Power Priority and the Power Budget................................................................................ 750
Determining the Power Priority for a Port..........................................................................................................750
Determining the Affect of a Port on the Power Budget.................................................................................. 751
Managing Power Priorities.......................................................................................................................................751
Configuring Power Management on the PE — Class and Static Mode......................................................752
Allocate PoE Power to Powered Devices to a Connected PE Interface.....................................................753
Setting the Threshold Limit for the PoE Power Budget....................................................................................... 755
Advertising the Extended Power through MDI........................................................................................................756
Advertising Extended Power Though dot3–TLVs.................................................................................................. 756
Detecting Legacy Devices and Allocating Power ...................................................................................................757
Deploying Voice Over IP (VoIP)...................................................................................................................................757
Creating VLANs for an Office VoIP Deployment...............................................................................................758
Configuring LLDP-MED for an Office VoIP Deployment.................................................................................758
Configuring QoS for an Office VoIP Deployment..............................................................................................759
Classifying VoIP Traffic and Applying QoS Policies..........................................................................................760
Managing PoE on the Port Extender.......................................................................................................................... 761
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Contents