Home Routing IGRP/EIGRP EIGRP metric is calculation


By default, EIGRP uses only bandwidth and Delay when calculating the metric. EIGRP
uses these scaled values to determine the total metric to the network:


• metric = [K1 * bandwidth + (K2 * bandwidth) / (256 - load) + K3 * delay] * [K5 /(reliability + K4)]


The default values for K are:


• K1 = 1
• K2 = 0
• K3 = 1
• K4 = 0
• K5 = 0


For default behavior, you can simplify the formula as: Metric = Bandwidth + Delay

Reference:
http://www.cisco.com/warp/public/103/eigrp-toc.html#eigrpmetrics

Last Updated (Friday, 22 May 2009 17:26)

 
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