Whoops.. looks like I answered the wrong question here.
Okay, the only protocols that support unequal-cost load balancing on Cisco routers are IGRP, EIGRP and BGP. For IGRP and EIGRP, you have to specify the variance parameter, which indicates that the maximum metric a route can have compared to the best metric for it to be considered a candidate for unequal-cost load balancing. For example, if the best route has a metric of 100 and there are two other routes to the same destination with metrics of 150 and 250 respectively, a variance of 2 will mean that the routing with the metric of 150 will also be installed in the routing table. This is because 150 < 2*100.
With BGP, you can achieve unequal-cost load balancing using the dmz-link bandwidth extended community.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...