Networking & Connectivity / Knowledge library

LLDP-MED — Link Layer Discovery Protocol Media Endpoint Discovery

Extends LLDP for media endpoints such as IP phones.

Acronym study batch 7 · reviewed 2026-10-20

Why learn LLDP-MED — Link Layer Discovery Protocol Media Endpoint Discovery?

Extends LLDP for media endpoints such as IP phones.

Where it came from

Endpoints and switches must support and permit the relevant policies.

• Memory aid (a learning cue, not the expansion): Media Endpoints Discover voice-network information through LLDP.

Build your understanding

Work through these exercises in order. Try the task before opening a reference.

1. Without looking, expand LLDP-MED: Link Layer Discovery Protocol Media Endpoint Discovery.
2. Recall this memory aid: Media Endpoints Discover voice-network information through LLDP.
3. Explain the practical use: Extends LLDP for media endpoints such as IP phones.
4. Explain this distinction: Endpoints and switches must support and permit the relevant policies.
5. Identify LLDP-MED in a device specification, architecture diagram, or system inventory.

Documentation and sources

• IEEE 802 LAN/MAN standards (www.ieee802.org)
• IETF Internet standards (www.rfc-editor.org)

Catalog source: technology-maxxing. This page reproduces the existing catalog’s learning material and source links.