Administrator Guide

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 54. 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 80. 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 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 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 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 through the CLI. Dell Networking also honors the power priority value the powered device sends; however,
the CLI configuration takes precedence.
550
Link Layer Discovery Protocol (LLDP)