Re: Eigrp

This is definitely a point of common confusion with EIGRP, because the documentation does not make it as clear as it should as to how the metric is scaled.

You can see a step by step example of how the metric is calculated, along with how the metric weighting K values and unequal cost load balancing with variance come in to play in the following excerpt from INE's CCIE R&S Lab Workbook Volume 1: http://goo.gl/UUz6p

Good luck in your studies!

Brian McGahan, CCIE #8593 (R&S/SP/Security)
bmcgahan_at_INE.com<mailto:bmcgahan_at_INE.com>

Internetwork Expert, Inc.
http://www.INE.com

On Mar 21, 2012, at 5:10 PM, "mohd-mousa_at_hotmail.com<mailto:mohd-mousa_at_hotmail.com>" <mohd-mousa_at_hotmail.com<mailto:mohd-mousa_at_hotmail.com>> wrote:

Hi All,
I have two question regarding eigrp
first, when i calculate the metric on fastethernet0/0 for specific
route,
I know that the equation is
metric = (10^7/BW kilobit+ cum-delay)
when i put this command do sh int | inc BW
the BW is 1000,00 DLY 100 microsecond
when i did the math based on that, the metric has never been true.. but when i
did it based as BW 1544 it was worked fine?
Second,
int lo0 20.0.0.4
int lo0 20.0.0.5
int lo0 20.0.0.6
int lo0 20.0.0.7
I have two routers (R1,R2) forming relationship between each other in eigrp,
R2 has lo01,lo2,lo3,lo4..i redistributed them into the AS by redis connected
route-map.....
when i did show ip route eigrp it gave me the routes as external=metric
170,when i tried to summarized these route from R2
it gave me the routes as internal 90 ?
Why was this happen,if i need the route to be appeared int R1 as /29 and the
metric is 170,is this duable ?
Sry guys i put alot of details, just want you all to imagine what i'am talking
about...

Thanks alot
Mohammad

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Received on Wed Mar 21 2012 - 21:31:38 ART