From: gladston@br.ibm.com
Date: Tue Nov 23 2004 - 06:46:17 GMT-3
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quoted
So, hopefully, I helped clear up a little confusion instead of adding to the
confusion.
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That is indeed easy to get confusing. I have been fighing with these terms for a time.
Sally, do you undertood the values involved? I am asking because it is easy to forget some points. Your question asks for very interesting thoughts and after trying to simulate your exercise I went back to the books. Wendell is a great book.
The IOS calculates how many bytes you it can send to met the shape rate. This is Bc. If you do not specify Bc, IOS will do it to reach the shape rate. Now, if you do not specify Be, Be is 0, which means you are just sending Bc. Well, if you are justing sending Bc, you are commited to the contracted (considering your CIR=shape rate). You see? There is no reason to set packets with DE because no packets will be discarded.
On the other hand, if you specify Be, what ever goes above Bc is not commited, and the IOS will set DE if you configure it to do so.
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