HSRP vs VRRP vs GLBP vs CARP + Cloud HA | First Hop Redundancy Explained

Redundancy isn’t optional — it’s essential. In this Technically U episode, we go beyond the basics and dive deep into the world of first-hop redundancy protocols, comparing:

✅ HSRP (Cisco’s classic standby setup)

✅ VRRP (the open standard failover protocol)

✅ GLBP (Cisco’s answer to load-balanced gateway redundancy)

✅ CARP (an open-source hero used in pfSense and BSD systems)

✅ Cloud & SD-WAN HA (modern, policy-driven high availability in the cloud)

🎧 You’ll learn:

What each protocol does and how it works

Benefits and limitations of each solution

Differences in vendor support, authentication, and scalability

How to choose the right option for Cisco, open-source, multi-vendor, or cloud-native networks

Why cloud networks no longer rely on traditional gateway protocols

Whether you're designing a bulletproof LAN or deploying in the cloud, this episode helps you make smarter network architecture decisions.

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