Planet SGS-5220-24P2X User Manual page 299

 LLDP-MED
Capabilities
 Application Type
expected to adhere to this class include (but are not limited to) end user
communication appliances, such as IP Phones, PC-based softphones, or other
communication appliances that directly support the end user.
Discovery services defined in this class include provision of location identifier
(including ECS / E911 information), embedded L2 switch support, inventory
management
LLDP-MED Capabilities describes the neighbor unit's LLDP-MED capabilities.
The possible capabilities are:
1. LLDP-MED capabilities
2. Network Policy
3. Location Identification
4. Extended Power via MDI - PSE
5. Extended Power via MDI - PD
6. Inventory
7. Reserved
Application Type indicating the primary function of the application(s) defined for
this network policy, advertised by an Endpoint or Network Connectivity Device.
The poosible application types are shown below.

Voice - for use by dedicated IP Telephony handsets and other similar
appliances supporting interactive voice services. These devices are typically
deployed on a separate VLAN for ease of deployment and enhanced
security by isolation from data applications.

Voice Signaling - for use in network topologies that require a different policy
for the voice signaling than for the voice media.

Guest Voice - to support a separate limited feature-set voice service for
guest users and visitors with their own IP Telephony handsets and other
similar appliances supporting interactive voice services.

Guest Voice Signaling - for use in network topologies that require a different
policy for the guest voice signaling than for the guest voice media.

Softphone Voice - for use by softphone applications on typical data centric
devices, such as PCs or laptops.

Video Conferencing - for use by dedicated Video Conferencing equipment
and other similar appliances supporting real-time interactive video/audio
services.

Streaming Video - for use by broadcast or multicast based video content
distribution and other similar applications supporting streaming video
services that require specific network policy treatment. Video applications
relying on TCP with buffering would not be an intended use of this
application type.

Video Signaling - for use in network topologies that require a separate
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User's Manual of SGS-5220 Series