ECMP (Equal-Cost Multi-Path) is a routing technique that spreads traffic across multiple paths of equal routing cost toward the same destination, increasing aggregate bandwidth and providing resilience if a path fails. It is essential to leaf-spine fabrics, where each leaf reaches a destination through every spine, letting the network load-balance flows across all uplinks rather than leaving redundant links idle.
Category: Network & Connectivity · Subcategory: Data Center Network Architecture · Part of the AIDC Technical Terminology reference.