RTS DV-3400 Technical Information PDF herunterladen (Seite 408)

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101

Configuring for Network Management Applications

LLDP (Link-Layer Discovery Protocol)

PoE Advertisements. These advertisements inform an LLDP-MED

endpoint of the power (PoE) configuration on switch ports. Similar

advertisements from an LLDP-MED endpoint inform the switch of the

endpoint’s power needs and provide information that can be used to identify

power priority mismatches.

Power-over-Ethernet TLVs include the following power data:

■ power type: indicates whether the device is a power-sourcing entity

(PSE) or a powered device (PD). Ports on the J8161A PoE xl module are

PSE devices. A MED-capable VoIP telephone is a PD.

■ power source: indicates the source of power in use by the device. Power

sources for powered devices (PDs) include PSE, local (internal), and PSE/

local. The 5300xl switches advertise Unknown.

■ power priority: indicates the power priority configured on the switch

(PSE) port or the power priority configured on the MED-capable end-

point.

■ power value: indicates the total power in watts that a switch port (PSE)

can deliver at a particular time, or the total power in watts that the MED

endpoint (PD) requires to operate.

To display the current power data for an LLDP-MED device connected to a

port, use the following command:

show lldp info remote-device < port-list >

For more on this command, refer to page 66.

To display the current PoE configuration on the switch, use the following

commands:

show power brief < port-list >

show power < port-list >

For more on PoE configuration and operation, refer to the chapter titled

“Power Over Ethernet (PoE) Operation for the Series 5300xl Switches” in the

Management and Configuration Guide for your switch.

Configuring Location Data for LLDP-MED Devices

You can configure a switch port to advertise location data for the switch itself,

the physical wall-jack location of the endpoint (recommended), or the

location of a DHCP server supporting the switch and/or endpoint. You also

have the option of configuring these different address types:

■ civic address: physical address data such as city, street number, and

building information

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