From: Michael Snyder (msnyder@revolutioncomputer.com)
Date: Sun Dec 07 2003 - 18:14:06 GMT-3
I wanted to recommend the Odom & Cavanaugh book Cisco DQOS.
It goes step by step, chapter by chapter over all the QOS tools. It
reads better than the CCO stuff, and its material isn't boiled down to
below ccnp level stuff. For example, I still haven't grasped all the
mechanisms behind the RED scheduling sequence numbers, thought I can use
it quite well now.
Don't let the `IP Telephony Self-Study Exam Certification Guide
subtitle` throw you off, the authors repeatedly point out mistakes in
the Cisco Courseware, and test questions on the related exams. Such
things on how dual priority queues in a LLQ policy map really works; and
how cisco should have used the layer 2 trailer sizes in the codec
overhead tables, etc.
I think it's in the same class as Parkhurst and Doyle, etc.
More importantly, it filled to some missing knowledge for me that's not
covered in the standard CCIE library.
-----Original Message-----
From: ccie2be [mailto:ccie2be@nyc.rr.com]
Sent: Sunday, December 07, 2003 2:26 PM
To: Bob Sinclair; Anas Tarsha; Group Study
Subject: Re: CAR vs Police
Thank you for pointing out that link. I read it and it was very helpful.
dt
----- Original Message -----
From: "Bob Sinclair" <bsin@cox.net>
To: "Anas Tarsha" <ra3i@yahoo.com>; "ccie2be" <ccie2be@nyc.rr.com>;
"Group
Study" <ccielab@groupstudy.com>
Sent: Saturday, December 06, 2003 9:51 PM
Subject: Re: CAR vs Police
> Anas,
>
> I would agree that Cisco could do a better job of explaining the
policing
> mechanism in the MQC, but I think I would disagree that it permits
buffering
> during congestion. There are Bc and Be parameters, but according to
the
> documentation this does not buffer packets to shape the traffic. The
best
> explanation I have found is at the link below, which says that the
policer
> does not buffer, but "drops packets less aggressively" during
congestion.
> Could you check it out and see what you think of it?
>
>
http://www.cisco.com/en/US/partner/tech/tk543/tk545/technologies_q_and_a
_item09186a00800cdfab.shtml#Q24
>
> Thanks!
>
> -Bob Sinclair
> CCIE #10427, CISSP, MCSE
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