From: John Matijevic (matijevi@bellsouth.net)
Date: Wed Mar 24 2004 - 16:31:17 GMT-3
Hello Joseph,
Did you post on their forum? According to my calculations, the auto-cost
reference bandwidth would be set to 1000, to produce a cost of 10.
Assuming you have not changed the bandwidth. Basically the formula is
reference bandwidth/interface bandwidth = cost. Now if you had to
manually change the bandwidth for another task this could also affect
the value. Make sure you read ahead to see if you had to also change the
bandwidth under the interface, this could influence the answer as well.
Sincerely,
Matijevic
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Joseph D. Phillips
Sent: Wednesday, March 24, 2004 1:48 PM
To: Group Study (E-mail)
Subject: OSPF auto-cost reference-bandwidth calc
If the default reference bandwidth is 100, how does changing the
auto-cost reference bandwidth to 3000 produce a cost of 10 on a
directly-connected, 100 mb link?
The default cost for such a link is 1. I don't understand how
multiplying the reference bandwidth by 30 produces a cost 10 times
higher than the default.
This is in reference to Internetworkexpert Lab 14 Task 5.17, for those
keeping score at home.
The original explanation of this command in the solutions guide doesn't
explain how the results are calculated by the OSPF process.
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