OSPF

CCIE Enterprise Infrastructure is the most popular CCIE track, validating expert-level skills in enterprise networking — routing, switching, SD-WAN, and network assurance. The v1.1 lab exam is 8 hours and tests both design reasoning and hands-on configuration across complex multi-protocol topologies. Exam Overview The CCIE Enterprise Infrastructure v1.1 exam consists of two modules: Module Duration Format Key Focus Module 1: Design 3 hours Scenario-based Architecture reasoning, no CLI Module 2: Deploy, Operate, Optimize 5 hours Hands-on lab Configuration, troubleshooting, optimization Core Exam Domains Domain Weight Technologies Network Infrastructure 25% OSPF, EIGRP, BGP, STP, VXLAN SD-WAN 20% vManage, overlay design, policies Transport Technologies 15% MPLS, GRE, DMVPN, IPsec Infrastructure Security 15% AAA, CoPP, uRPF, MACsec Network Assurance 15% DNA Center, NetFlow, SNMP, streaming telemetry Automation 10% Python, NETCONF, RESTCONF, model-driven programmability Who Should Pursue This Track? CCIE Enterprise Infrastructure is ideal for: ...

If you’re grinding through OSPF LSA types and BGP path selection at 2 AM, you’ve probably had this thought: “Will I actually use any of this?” You’re not alone. A recent Reddit thread in r/networking went viral when a junior network engineer — actively studying for the CCIE — discovered that senior engineers at his company couldn’t even explain the OSPF templates they’d been deploying for years. The thread exploded with nearly 100 comments, and the consensus was surprisingly honest: most network engineers rarely make L3 routing changes in their day-to-day work. ...