Well, reason I ask is that I was looking over a study sheet that lists the
routing protocols, their type (link-state/distance-vector), their metric,
etc, and it listed Bandwidth, Delay, Load, and Reliability as the components
for (E)IGRP metric calculation, but something in the back of mind was going
"Where's MTU?".  So I started digging around Cisco's site, and found
documents showing the formula for calculation (only using the 4 components
listed above) but then found all of the other things regarding
redistribution and default metrics that tell you to use all five (the four
above plus MTU).

But yes, I've often read that it's best to leave K1 = K3 = 1 and K2 = K4 =
K5 = 0.  However, I can't see why changing these values would result in
frequent recalculation of the topology table.  Wouldn't the topology table
only change when there are changes to the topology? (Which it seems to me
wouldn't have anything to do with the values of K1-K5 used in the metric
calculation).

Mike W.

"Steve Watson"  wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Good question!! Not sure this is what you're looking for but it also
> says that it is based on five criteria, bandwidth and delay are the
> default criteria; reliability, loading and MTU are additional criteria
> are NOT RECOMMENDED FOR USE because they result in frequent
> recalculation of the topology table.
>
> Steve




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