Understanding Enhanced Interior Gateway Routing Protocol (EIGRP) Metrics EIGRP and IGRP use the same equation to calculate their metrics; however, the EIGRP metric is obtained by multiplying the IGRP metric by 256. In other words: where the IGRP metric is shown in Equation 6-1. By default, the K values of K1 and K3 are 0; therefore, the EIGRP metric simplifies to … [Read more...]