EIGRP question.

i have a question about Eigrp cost. How would R1 travel through the network if the network had a other routes to get to R2? one route could be a T1, another combo of router with 100M and another route T3. the Eigrp config would be config as default without varience.

Since eirgp use Bandwidth and delay, i would assume it would route through the T3, which is more bandwidth than the T1 and combo of 100M combo routers. the icnd book explains the eigrp always take the lowest cost to route and gives you the cost #. how do you come out with the cost # to figure out the best cost path so packet can travel from R1 to R2.

ed

Reply to
Ed
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If by cost # you mean the EIGRP metric for the route, by default it's:

256 * ( 10**8/minimum BW + Total delay along the path)
Reply to
Martin Gallagher

so by your division equation, you mean that if the BW is higher the cost/metric would be for the route to get from R1 to R2 would be better served if it goes through the combo 100M routers rather then the T1 route or T3 route? Yes?

Reply to
Ed

If you are talking a single hop in all cases, yes since a 100mbit lan connection is higher bandwidth and lower latency than a 45mbit DS3.

Reply to
Trendkill

did not know that. thats for your help.

ed

Reply to
Ed

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