Configuring for Network Management Applications

LLDP (Link-Layer Discovery Protocol)

■Power over Ethernet (PoE) status and troubleshooting support via

SNMP

■support for IP telephony network troubleshooting of call quality issues via SNMP

This section describes how to configure and use LLDP-MED features in the switches to support VoIP network edge devices (Media Endpoint Devices) such as:

■IP phones

■voice/media gateways

■media servers

■IP communications controllers

■other VoIP devices or servers

Switches Providing Network

 

LLDP-MED Class 1 Generic Endpoints

Access to LLDP-MED Endpoints

 

Such As IP Call Control Devices

 

 

 

 

 

IPIP NetworkNetwork

 

IP Network

 

InfrastructureInfrastructure

 

Infrastructure

LLDP-MED Class 2 Media Endpoints Such As

(IEEE(IEEE 802802 LAN)LAN)

(IEEE 802 LAN)

Media Gateways, Conference Bridges, and

 

 

other Devices Supporting IP Media Streams

LLDP-MED Class 3 End-User IP Communication

Devices Such As VoIP Telephones

Figure 14-19. Example of LLDP-MED Network Elements

LLDP-MED Endpoint Support. LLDP-MED on the switches covered in this guide interoperates with directly connected IP telephony (endpoint) clients having these features and services:

■able to autonegotiate speed and duplex configuration with the switch

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