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Link Layer Discovery Protocol
(LLDP) (802.1ab) with LLDP-
MED extensions
LLDP allows the switch to advertise its identification, configuration, and capabilities to neighboring devices, which
store the data in an MIB. LLDP-MED is an enhancement to LLDP that adds the extensions needed for IP phones.
The switch advertises itself using the Cisco Discovery Protocol (available April 2011)
Power over Ethernet (PoE)
Maximum power of 15.4W to any 10/100 or Gigabit Ethernet base port. The total power available for PoE per switch
is as follows:
Number of Ports That
Support PoE
IEEE 802.3af PoE delivered
on half of the RJ-45 ports
within the listed power
budgets
Power Consumption:
Worst Case
Heat Dissipation
(BTU/hr)
110V/0.272A/ 13.7W
220V/0.169A/ 14.5W
110V/0.346A/ 21.3W
220V/0.166A/ 22.2W
110V/0.453A/ 26.2W
220V/0.276A/ 26.8W
110V/0.355A/ 37.2W
220V/0.217A/ 37.4W
Energy Detect (link
down), short reach
110V/ P=22.4W
220V/ P=22.9W
Short reach plus
Energy Detect
110V/0.513A/ 27.8W
220V/0.306A/ 28.3W
Short reach plus
Energy Detect
110V/0.591A/ 36.8W
220V/0.381A/ 37.5W
Short reach plus
Energy Detect
110V/0.569A/ 61.8W
220V/0.296A/ 61.4W
Short reach plus
Energy Detect
110V/0.749A/ 76.4W
220V/0.412A/ 78.3W
Combo Ports
(RJ-45 + SFP)
24 Fast Ethernet
2 Gigabit Ethernet
24 Fast Ethernet
2 Gigabit Ethernet
48 Fast Ethernet
2 Gigabit Ethernet
48 Fast Ethernet
2 Gigabit Ethernet
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