Administrator Guide

• VLAN tagged or untagged status
• Layer 2 priority
• DSCP value
An integer represents the application type (the Type integer shown in the following table), which indicates a device function for which a
unique network policy is defined. An individual LLDP-MED network policy TLV is generated for each application type that you specify with
the Dell EMC Networking OS CLI (Advertising TLVs).
NOTE: As shown in the following table, signaling is a series of control packets that are exchanged between an endpoint
device and a network connectivity device to establish and maintain a connection. These signal packets might require a
different network policy than the media packets for which a connection is made. In this case, configure the signaling
application.
Table 40. Network Policy Applications
Type Application Description
0 Reserved —
1 Voice Specify this application type for dedicated IP telephony handsets
and other appliances supporting interactive voice services.
2 Voice Signaling Specify this application type only if voice control packets use a
separate network policy than voice data.
3 Guest Voice Specify this application type for a separate limited voice service
for guest users with their own IP telephony handsets and other
appliances supporting interactive voice services.
4 Guest Voice Signaling Specify this application type only if guest voice control packets
use a separate network policy than voice data.
5 Softphone Voice Specify this application type only if guest voice control packets
use a separate network policy than voice data.
6 Video Conferencing Specify this application type for dedicated video conferencing
and other similar appliances supporting real-time interactive
video.
7 Streaming Video Specify this application type for dedicated video conferencing
and other similar appliances supporting real-time interactive
video.
8 Video Signaling Specify this application type only if video control packets use a
separate network policy than video data.
9–255 Reserved —
Figure 71. LLDP-MED Policies TLV
Extended Power via MDI TLV
The extended power via MDI TLV enables advanced PoE management between LLDP-MED endpoints and network connectivity devices.
Advertise the extended power via MDI on all ports that are connected to an 802.3af powered, LLDP-MED endpoint device.
• Power Type — there are two possible power types: power source entity (PSE) or power device (PD). The Dell EMC Networking
system is a PSE, which corresponds to a value of 0, based on the TIA-1057 specification.
• Power Source — there are two possible power sources: primary and backup. The Dell EMC Networking system is a primary power
source, which corresponds to a value of 1, based on the TIA-1057 specification.
• Power Priority — there are three possible priorities: Low, High, and Critical. On Dell EMC Networking systems, the default power
priority is High, which corresponds to a value of 2 based on the TIA-1057 specification. You can configure a different power priority
Link Layer Discovery Protocol (LLDP)
425