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LLC — Logical Link Control

Provides the upper portion of the IEEE 802 data-link architecture.

Acronym study batch 7 · reviewed 2026-10-20

Why learn LLC — Logical Link Control?

Provides the upper portion of the IEEE 802 data-link architecture.

Where it came from

LLC and MAC describe different data-link sublayers.

• Memory aid (a learning cue, not the expansion): Logical Links have a Control layer above media access.

Build your understanding

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

1. Without looking, expand LLC: Logical Link Control.
2. Recall this memory aid: Logical Links have a Control layer above media access.
3. Explain the practical use: Provides the upper portion of the IEEE 802 data-link architecture.
4. Explain this distinction: LLC and MAC describe different data-link sublayers.
5. Identify LLC 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.