11
Power Over Ethernet (PoE) Operation
Contents
Overview
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-2
Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-2
Related Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-3
Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-3
PoE Operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-4
Powered Device (PD) Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-4
Power Priority Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-5
When Is Power Allocation Prioritized? . . . . . . . . . . . . . . . . . . . . . 11-5
How Is Power Allocation Prioritized? . . . . . . . . . . . . . . . . . . . . . . 11-5
Configuring PoE Operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-6
Disabling or Re-Enabling PoE Port Operation . . . . . . . . . . . . . . . . . . 11-6
Enabling Support for Pre-Standard Devices . . . . . . . . . . . . . . . . . . . . 11-6
Configuring the PoE Port Priority Level . . . . . . . . . . . . . . . . . . . . . . . 11-8
Controlling PoE Allocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-9
Manually Configuring PoE Power Levels . . . . . . . . . . . . . . . . . . . . . . 11-10
Changing the Threshold for Generating a Power Notice . . . . . . . . . 11-12
Cycling Power on a Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-13
PoE/PoE+ Allocation Using LLDP Information
. . . . . . . . . . . . . . . . 11-14
LLDP with PoE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-14
Viewing PoE Configuration and Status
. . . . . . . . . . . . . . . . . . . . . . . 11-15
Displaying the Switch’s Global PoE Power Status . . . . . . . . . . . . . . 11-15
Displaying an Overview of PoE Status on All Ports . . . . . . . . . . . . . 11-16
Displaying the PoE Status on Specific Ports . . . . . . . . . . . . . . . . . . . 11-18
11-1
Summary of Contents for PROCURVE 2520
Page 2: ......
Page 3: ...HP ProCurve 2520 Switches November 2009 S 14 03 Management and Configuration Guide ...
Page 60: ...Using the Menu Interface Where To Go From Here 3 16 ...
Page 82: ...Using the Command Line Interface CLI CLI Editing Shortcuts 4 22 ...
Page 146: ...Switch Memory and Configuration Automatic Configuration Update with DHCP Option 66 6 40 ...
Page 164: ...Interface Access and System Information System Information 7 18 ...
Page 292: ...Port Trunking Outbound Traffic Distribution Across Trunked Links 12 30 ...
Page 374: ...Configuring for Network Management Applications LLDP Link Layer Discovery Protocol 13 82 ...
Page 434: ...Monitoring and Analyzing Switch Operation Locating a Device B 30 ...
Page 514: ...Troubleshooting DNS Resolver C 80 ...
Page 524: ...Daylight Savings Time on ProCurve Switches E 4 ...
Page 542: ...16 Index ...
Page 543: ......