EIGRP Metric

EIGRP uses the following equation in computing its metric. EIGRP metric = [K1 * bandwidth + (K2 * bandwidth)/256 – load) + K3 * delay]*[K5/(reliability + K4)] By default, EIGRP’s K values are set to: K1 and K3 = 1 K2, K4 and K5 = 0 Substituting K values yields

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EIGRP Unequal Cost Load Balancing

EIGRP is the only IGP protocol that supports unequal cost load balancing. EIGRP unequal cost load balancing allows the router to load balance traffic that of different routing metric values. The variance command determines which of these routes is used by the router. Default variance value is one not zero.

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