Suresh, You are correct that the section is incorrect but your explanation doesn't make sense to me.
The problem is some of us have been doing this for too long ;-) The section is correct if you apply the logic to pre 12.2T code. So 12.2 mainline and before the calculation was based off of available bandwidth. So think back five years and our answer is correct. But since we are running 12.4 mainline this answer in the proctor guide is incorrect. Here is the explanation from cisco.com Cisco IOS Software Releases 12.2T and 12.3 In Cisco IOS Software Releases 12.2T and 12.3, the bandwidth percent command is consistent among 7500 and 7200 and earlier. This means that now, the bandwidth percent command no longer refers to a percentage of the Available Bandwidth, but to a percentage of the interface bandwidth. A class with a bandwidth percent command in a policy-map now has a fix calculated amount of bandwidth allocated to it. The sum of all the bandwidth or bandwidth percent, priority and priority percent classes together has to respect the max reserved bandwidth rule. So the answer in the proctor guide should be policy-map R7-R8-Output class TEST-Sql bandwidth percent 29 class TEST-Citrix bandwidth percent 25 class TEST-Ftp bandwidth percent 17 class TEST-KazNap bandwidth percent 8 Which then is 79% of bandwidth. So the max-reserved-bandwidth would need to be 79 and we wouldn't need to do anything to the class-default. This will need to be something we address in a revision. Regards, Tyson Scott - CCIE #13513 R&S and Security Technical Instructor - IPexpert, Inc. Telephone: +1.810.326.1444 Cell: +1.248.504.7309 Fax: +1.810.454.0130 Mailto: [EMAIL PROTECTED] Join our free online support and peer group communities: http://www.IPexpert.com/communities IPexpert - The Global Leader in Self-Study, Classroom-Based, Video On Demand and Audio Certification Training Tools for the Cisco CCIE R&S Lab, CCIE Security Lab, CCIE Service Provider Lab , CCIE Voice Lab and CCIE Storage Lab Certifications. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Suresh Mishra Sent: Thursday, July 17, 2008 10:31 AM To: osl Subject: [OSL | CCIE_RS] VOL1-LAB18-18.12 I was working on this LAB today. The requirement for this LAB is to express bytes using bandwidth percent instead of bandwidth command. To calculate the percentage bandwidth, the answer in the P.G did not consider the interface bandwidth vlaue instead it used the (Interface bandwidth -default ) formula which is applicable only if "Banwidth percent remaining" command is used instead of bandwidth percent. I would like to know why the author of the P.G did not use the interface bandwidth instead used (interbw-default) thanks Suresh
