Remember ECMP
Full name: Equal-Cost Multipath
Memory aid: Equal-Cost paths give Multiple choices.
Per-flow hashing can keep a single flow on one path.
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
ECMP — Equal-Cost Multipath
Uses multiple routing next hops with equal routing cost.
Why learn ECMP — Equal-Cost Multipath?
Uses multiple routing next hops with equal routing cost.
Where it came from
Per-flow hashing can keep a single flow on one path.
- Memory aid (a learning cue, not the expansion): Equal-Cost paths give Multiple choices.
Build your understanding
Work through these exercises in order. Try the task before opening a reference.
- Without looking, expand ECMP: Equal-Cost Multipath.
- Recall this memory aid: Equal-Cost paths give Multiple choices.
- Explain the practical use: Uses multiple routing next hops with equal routing cost.
- Explain this distinction: Per-flow hashing can keep a single flow on one path.
- Identify ECMP in a device specification, architecture diagram, or system inventory.
Documentation and sources
- IETF RFC 2992 (www.rfc-editor.org)