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understanding the IGRP composite metric

I am studying to take the 640-603 routing exam. I am using a book by Cisco press "called CCNP Practical Studies". the explanation given for the IGRP composite metric is confusing... First, the book offers the following as the metric " Composite metric = K1 X bandwidth + (K2 X bandwidth) / (256-load) = K3 X delay ". It then inicates the values for K1 and K3 =1 and that K2, K4, and K5 = 0. Then it goes on to say that typically, the formula is "IGRP composite metric = bandwidth + delay". My question is, is the correct explanation for the composite metric the first example or the second....

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Re: understanding the IGRP composite metric

Both... When you plug the default K values into the real metric, you wind up with the "default," or typical formula. Take a look at the eigrp white paper on CCO.

:-)

Russ

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