Chapter
3: Web Management
LLDP - LLDP-MED
NGSME24G4S User Manual | 144
Policies are only intended for use with applications that have specific 'real-time' network
policy requirements, such as interactive voice and/or video services.
The network policy attributes advertised are:
1. Layer 2 VLAN ID (IEEE 802.1Q-2003)
2. Layer 2 priority value (IEEE 802.1D-2004)
3. Layer 3 Diffserv code point (DSCP) value (IETF RFC 2474)
This network policy is potentially advertised and associated with multiple sets of application
types supported on a given port. The application types specifically addressed are:
1. Voice
2. Guest Voice
3. Softphone Voice
4. Video Conferencing
5. Streaming Video
6. Control / Signaling (conditionally support a separate network policy for the media types
above)
A large network may support multiple VoIP policies across the entire organization, and
different policies per application type. LLDP-MED allows multiple policies to be advertised per
port, each corresponding to a different application type. Different ports on the same Network
Connectivity Device may advertise different sets of policies, based on the authenticated user
identity or port configuration.
It should be noted that LLDP-MED is not intended to run on links other than between Network
Connectivity Devices and Endpoints, and therefore does not need to advertise the multitude
of network policies that frequently run on an aggregated link interior to the LAN.
Delete
Check to delete the policy. It will be deleted during the next save.
Policy ID
ID for the policy. This is auto generated and shall be used when selecting the polices that
shall be mapped to the specific ports.
Application Type
Intended use of the application types:
1. 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.
