Configuring for Network Management Applications
LLDP (Link-Layer Discovery Protocol)
■ IP communications controllers
■ other VoIP devices or servers
Switches Providing Network
Access to LLDP-MED Endpoints
LLDP-MED Class 1 Generic Endpoints
Such As IP Call Control Devices
LLDP-MED Class 2 Media Endpoints Such As
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 13-23. 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
■ able to use the following network policy elements configured on the
client port
• voice V LAN ID
• 802.1p (Layer 2) QoS
• Diffserv codepoint (DSCP) (Layer 3) QoS
■ discover and advertise device location data learned from the switch
■ support emergency call service (ECS—such as E911, 999, and 112)
■ advertise device information for the device data inventory collected
by the switch, including:
• hardware revision • serial number • asset ID
• firmware revision • manufacturer name
• software revision • model n ame
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