Allied-telesis AlliedWare Plus Operating System Version 5.4.4C (x Uživatelský manuál Strana 8

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Software Reference for x310 Series Switches
viii AlliedWare Plus
TM
Operating System - Version 5.4.4C C613-50046-01 REV A
Chapter 22: Power over Ethernet Introduction
Introduction.................................................................................................................................................................... 22.2
PoE standards.......................................................................................................................................................... 22.2
PoE (all standards) .................................................................................................................................................22.3
PoE (IEEE 802.3af)................................................................................................................................................... 22.3
Enhanced PoE .........................................................................................................................................................22.3
PoE+ (IEEE 802.3at)................................................................................................................................................ 22.4
Differences between PoE and PoE+ ...............................................................................................................22.4
LLDP-MED (TIA-1057) with PoE+ (IEEE 802.3at)..........................................................................................22.4
PoE and PoE+ Applications................................................................................................................................ 22.5
Power Device (PD) discovery.............................................................................................................................22.5
Power classes ..........................................................................................................................................................22.5
Power through the cable: ................................................................................................................................... 22.6
Cable Types.............................................................................................................................................................. 22.7
Static and Automatic Power Allocation.........................................................................................................22.7
PoE and PoE+ Implementation ...............................................................................................................................22.8
Power Capacity.......................................................................................................................................................22.8
PoE Port Allocation and Distribution..............................................................................................................22.8
Power threshold.....................................................................................................................................................22.8
Negotiating Power Requirements................................................................................................................... 22.9
PoE port management......................................................................................................................................... 22.9
Powered Device (PD) detection .......................................................................................................................22.9
Port prioritization...................................................................................................................................................22.9
Software monitoring ..........................................................................................................................................22.11
PoE and PoE+ Configuration..................................................................................................................................22.12
Add a description for a PoE or PoE+ port ...................................................................................................22.12
Configuring Capacity and Priority on a PoE or PoE+ Port.....................................................................22.13
Remotely monitoring power for all connected PDs ...............................................................................22.14
Chapter 23: Power over Ethernet Commands
Introduction.................................................................................................................................................................... 23.2
Command List................................................................................................................................................................23.2
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