Remember FIB
Full name: Forwarding Information Base
Memory aid: Forwarding uses an Installed Base of next hops.
FIB programming must reflect the intended control-plane routing decisions.
Study area: Network architecture & switching · Batch 7
Relevant study for: CompTIA Network+ N10-009 · Cisco CCNA 200-301 · CompTIA Security+ SY0-701 · ISC2 CISSP 2024 outline
Practice with exam flashcards →Networking & Connectivity / Knowledge library
FIB — Forwarding Information Base
Stores forwarding information used to make packet-forwarding decisions.
Why learn FIB — Forwarding Information Base?
Stores forwarding information used to make packet-forwarding decisions.
Where it came from
FIB programming must reflect the intended control-plane routing decisions.
- Memory aid (a learning cue, not the expansion): Forwarding uses an Installed Base of next hops.
Build your understanding
Work through these exercises in order. Try the task before opening a reference.
- Without looking, expand FIB: Forwarding Information Base.
- Recall this memory aid: Forwarding uses an Installed Base of next hops.
- Explain the practical use: Stores forwarding information used to make packet-forwarding decisions.
- Explain this distinction: FIB programming must reflect the intended control-plane routing decisions.
- Identify FIB 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)