IntermediateDailyLocked
CCNA: HSRP Preemption & Tracking — Fail Over and Back
Daily CCNA campus-redundancy lab focusing on HSRP preemption and interface tracking. You will refine an already-working HSRP default gateway so it follows real network health: fail to the standby when the preferred router loses its upstream, and preempt back when it recovers. The topology is an enterprise-clean small site with two distribution routers sharing a user VLAN through a Layer-2 access switch, each with its own point-to-point uplink to a core router. The starter works in steady state but suffers a blackhole during uplink failures and never reclaims Active without preemption. Your job is to add preempt and tracking on the correct router/interface and verify end-to-end forwarding under failover and failback.