FHRP

First Hop Redundancy Protocols (HSRP, VRRP, GLBP), the gateway redundancy mechanisms that keep clients connected when a router fails. Articles tagged FHRP cover the three protocols compared, configuration patterns, STP integration, and Cisco IOS XE walkthroughs.

5 posts

HSRP states 6-state machine feature image, PingLabz

FHRP

HSRP States: The 6-State Machine with show standby Output

All 6 HSRP states (Initial, Learn, Listen, Speak, Standby, Active), what drives the election, why preempt matters, interface tracking, and real show standby output.

Jun 8, 2026 5 min read

FHRP

HSRP vs VRRP vs GLBP: Choosing the Right FHRP

HSRP, VRRP, and GLBP all solve first-hop redundancy with different trade-offs. The side-by-side comparison, when each wins, failover times, and migration paths.

Apr 26, 2026 4 min read

FHRP

GLBP for Active/Active Load Balancing

GLBP (Gateway Load Balancing Protocol) is Cisco's load-balancing FHRP. AVG, AVFs, three load balancing methods, configuration, and when GLBP is actually the right answer.

Apr 26, 2026 4 min read

FHRP

VRRP Explained: The Vendor-Neutral FHRP

VRRP (Virtual Router Redundancy Protocol, RFC 5798) is the vendor-neutral FHRP. How it works, master election, IP address owner trap, vs HSRP, Cisco IOS XE configuration, and tracking.

Apr 26, 2026 5 min read

FHRP

HSRP High Availability: Configure Cisco HSRP Step-by-Step

Learn how to deploy Cisco HSRP for gateway redundancy, including detailed steps, priority settings, tracking, failover behavior, and verification commands.

Dec 21, 2024 3 min read