EIGRP metric calculation demystified

From: Gregory Gombas (ggombas@gmail.com)
Date: Mon Aug 06 2007 - 12:09:40 ART


Cisco documentation shows the EIGRP metric calculation as this:
metric = [K1*bandwidth + (K2*bandwidth)/(256 - load) + K3*delay] *
[K5/(reliability + K4)]

Popular literature says it breaks down to this:
256(BW + Delay)

In reality the calculation is this:
256((10,000,000/BW)) + (Delay/10))

Does anyone know if this final formula can be found on the DOC cd?

The closes match I could find was on WARP:
http://www.cisco.com/warp/public/103/3.html

But can this handy formula be accessed from the lab? Its kind of a
pain to memorize.

Regards,
Greg



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