Dell Networking S6000 Uživatelský manuál stáhnout pdf (Strana 532)

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Regarding connected endpoint devices, LLDP-MED provides network connectivity devices with the ability

to:

• manage inventory

• manage Power over Ethernet (PoE)

• identify physical location

• identify network policy

LLDP-MED is designed for, but not limited to, VoIP endpoints.

TIA Organizationally Specific TLVs

The Dell Networking system is an LLDP-MED Network Connectivity Device (Device Type 4).

Network connectivity devices are responsible for:

• transmitting an LLDP-MED capability TLV to endpoint devices

• storing the information that endpoint devices advertise

The following table describes the five types of TIA-1057 Organizationally Specific TLVs.

Table 39. TIA-1057 (LLDP-MED) Organizationally Specific TLVs

Type SubType TLV Description

127 1 LLDP-MED Capabilities Indicates:

• whether the

transmitting device

supports LLDP-MED

• what LLDP-MED

TLVs it supports

• LLDP device class

127 2 Network Policy Indicates the application

type, VLAN ID, Layer 2

Priority, and DSCP value.

127 3 Location Identification Indicates that the

physical location of the

device expressed in one

of three possible

formats:

• Coordinate Based

LCI

• Civic Address LCI

• Emergency Call

Services ELIN

127 4 Location Identification Indicates power

requirements, priority,

and power status.

Inventory Management

TLVs

Implementation of this

set of TLVs is optional in

LLDP-MED devices.

532

Link Layer Discovery Protocol (LLDP)

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