Configuring Equal- and Unequal-Cost Routing

Equal-cost routing distributes traffic among multiple paths with equal metrics. You have equal-cost routing by default for up to four paths for the RIP, EIGRP, and OSPF routing protocols.

Unequal-cost routing is load balancing among multiple paths with unequal metrics. If your router is configured for IGRP or EIGRP, you have unequal-cost routing.

If you want more than four paths for a route (the maximum is six) or you want to specify a variance multiplier for unequal-cost routing, choose Device > Equal- and Unequal-Cost Routing and use the Equal- and Unequal-Cost Routing Configuration window.