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Jul 17, 2023 · Operations

Mastering VRRP: How to Ensure Router Redundancy and Prevent Split‑Brain Failures

This article explains the VRRP protocol’s core concepts, state machine, election process, and multi‑master HA mode, provides step‑by‑step Linux router configuration examples—including group creation, priority, interface tracking, preempt mode, timers, and learning—plus an overview of Keepalived’s architecture and split‑brain mitigation strategies.