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Dell EMC SmartFabric OS10 User Guide Release 10.5.0

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LLED-MED network policies TLVs

A network policy in the context of LLDP-MED is a VLAN configuration of a device and associated L2 and L3 configurations.

LLDP-MED network policies TLV include:

  • VLAN ID
  • VLAN tagged or untagged status
  • L2 priority
  • DSCP value

lldp-med policies tlv

You can configure a LLDP-MED network policy to generate an individual network policy TLV for each application type. For more information, see Define network policies.

NOTE 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 where a connection is made. In this case, configure the signaling application.
Table 1. LLDP-MED Network policies TLVsLLDP-MED Network policies TLVs
Type Application Description
0 Reserved —
1 Voice Used for dedicated IP telephony handsets and other appliances supporting interactive voice services.
2 Voice signaling Used only if voice control packets use a separate network policy than voice data.
3 Guest voice Used only 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 Used only if guest voice control packets use a separate network policy than voice data.
5 SoftPhone voice Used for softphone applications on a device such as a personal computer or laptop. This class does not support multiple VLANs and if required, uses an untagged VLAN or a single tagged data-specific VLAN.
6 Video conferencing Used only for dedicated video conferencing and similar appliances supporting real-time interactive video.
7 Streaming video Used for broadcast or multicast-based video content distribution and similar applications supporting streaming video services that require specific network policy treatment.
8 Video signaling Used only if video control packets use a separate network policy than the video data.
9-255 Reserved —

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