2 hands-on ECMP scenarios you build in your own Cisco Modeling Labs instance and grade against the answer key. ECMP configuration and troubleshooting practice for CCNA and CCNP.
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Build a small HQ–WAN–Branch triangle with two independent WAN paths. Configure equal-cost static routes on both edge routers so traffic to the opposite site’s LAN installs with two next-hops and is load-shared by CEF. Verify end-to-end reachability from real hosts, observe per-flow load sharing on the routers, and compare behavior to a floating static of higher administrative distance.
Build a 3-router triangle with two end-to-end paths between Branch A and the Data Center. Stand up OSPF area 0, create an ECMP condition, then intentionally steer traffic using ip ospf cost. Verify from the end hosts and troubleshoot common OSPF control-plane mismatches.
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