HP 6120G/XG ProCurve Series 6120 Blade Switches Management and Configuration G - Page 349

Note Configuring for Network Management Applications LLDP (Link-Layer Discovery Protocol) ■ able to use the following network policy elements configured on the client port • voice VLAN 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 name ■ provide information on network connectivity capabilities (for example, a multi-port VoIP phone with Layer 2 switch capability) ■ support the fast start capability LLDP-MED on the switches covered in this guide is intended for use with VoIP endpoints, and is not designed to support links between network infrastructure devices, such as switch-to-switch or switch-to-router links. LLDP-MED Endpoint Device Classes. LLDP-MED endpoint devices are, by definition, located at the network edge and communicate using the LLDPMED framework. Any LLDP-MED endpoint device belongs to one of the following three classes: ■ Class 1 (Generic Endpoint Devices): These devices offer the basic LLDP discovery services, network policy advertisement (VLAN ID, Layer 2/802.1p priority, and Layer 3/DSCP priority), and PoE management. This class includes such devices as IP call controllers and communication-related servers. ■ Class 2 (Media Endpoint Devices): These devices offer all Class 1 features plus media streaming capability, and include such devices as voice/media gateways, conference bridges, and media servers. 13-57