Fans of the wildly popular CCIE Written Bootcamp need to check out Practice Exam 2 which has been updated with some more thought-provoking Quality of Service (QoS) questions that will help with the CCIE R&S Written as well as the Lab exam. Read More
This blog post is taken from the INE Resources area Understanding Frame-Relay Traffic Shaping presentation by Brian Dennis. Overview Frame-Relay traffic shaping is designed to control the amount of traffic the router sends out of an interface or out of a particular DLCI. Common reasons for Frame-Relay traffic shaping are: It allows the router to conform to the rate subscribed with the service provider It allows for the throttling of a higher speed site (768K) so that it does not overrun a lower... Read More
Many people have problems understanding the meaning of Bc (committed burst) used with traffic policing. Everyone seems to know the “magic” formula (Bc=1,5sec*CIR) but have a vague understanding of the reasons behind it. Let's clear the confusion and see what Bc really affects when it comes to policing. Averaging and Smoothing Imagine you're driving a car and want to find out your speed. In order to do this, you need to count the time (T) it takes you to pass the distance (S). The speed is then... Read More
Hello everyone! We want your feedback on changes to this product sent to: asequeira@ine.com Read More
The QoS section for our new CCIE Routing & Switching Lab Workbook Volume 1 Version 5 is now completed and posted on the members site!  In its completed format this document consists of over 80 sections and totals nearly 500 pages. This is by far the most complete single resource I have ever seen for QoS on Cisco IOS. Special thanks to Petr Lapukhov for his intense research and unparalleled expertise in the development of this topic area. The following sections are now available in QoS:... Read More
More sections have been posted to the IEWB-RS Volume 1 Version 5 section for QoS.  The following topics are now available. Read More
More updates have been posted to the QoS section of IEWB-RS Volume 1 Version 5.0.  The following sections are now available for download: Read More
More updates to the IEWB-RS Volume 1 Version 5.0 QoS section have been posted. The following sections are now available in addition to those previously posted: Read More
Keeping with our new CCIE 2.0 theme of constant incremental updates, the QoS section for the CCIE Routing & Switching Lab Workbook Volume 1 Version 5 is starting being released today. Updates to this document will be posted multiple times this week, so make sure to keep an eye on the timestamp on the members site next to the file's link. Shortly we will be implementing a new system that you can "subscribe" to email update notifications for different products. The following sections are now... Read More
In this post we will look at the basic classification and marking features available in the 3550 and 3560 switches. Basic features include packet marking using port-level settings and port-level policy-maps. Discussing Per-VLAN classification is outside the scope of this document. The Catalyst QoS implementation bases on Differentiated Services model. In a few words, the ideas of this model could be outlined as follows: 1) Edge nodes classify ingress packets based on local policy and QoS label... Read More

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