Blog Archives

A Network Designer’s Thought Process Part 2 by Cary Chen

-+*Develop network designs What do I consider when developing network design options? I believe that OSPF area design could affect OSPF stability, scalability, convergence, optimal routing, interaction with other features, and ease of operation, maintenance, and troubleshooting. What design options

Posted in CCDE

BGP Route Reflector

-+*Purpose The purpose is to reduce the number of iBGP peers Advantage over confederation is route reflector can be implemented in stages, where else confederation is an all or no. only the router reflector needs to be configured, the other

Posted in CCDE

CCDE: Myth Busters and the CCDE Practical Exam Question Types

-+*How the mechanics of the different question types work This blog is in response to a reader (and potentially many others) who wants to know more about the types of questions they will encounter on the CCDE practical exam and

Posted in CCDE

QOS DESIGN NOTES FOR CCDE

-+*Trying to get my CCDE studies going again. I’ve finished the End to End QoS Design book (relevant parts) and here are my notes on QoS design. Basic QoS Different applications require different treatment, the most important parameters are: Delay:

Posted in CCDE

STP NOTES FOR CCDE

-+*STP was originally defined in IEEE 802.1D and improvements were defined in amendments to the standard. RSTP was defined in amendment 802.1w and MSTP was defined in 802.1s. The latest 802.1D-2004 standard does not include “legacy STP”, it covers RSTP.

Posted in CCDE

DESIGN CONSIDERATIONS FOR NORTH/SOUTH FLOWS IN THE DATA CENTER

-+*Traditional data centers have been built by using standard switches and running Spanning Tree (STP). STP blocks redundant links and builds a loop-free tree which is rooted at the STP root. This kind of topology wastes a lot of links

Posted in CCDE

CCDE Practical Exam Demo

-+*The following is a sample of the CCDE Practical Exam. This demonstration was built with the same tools used to create the actual CCDE Practical Exam. However, the demo is much shorter; it includes just enough questions to illustrate the

Posted in CCDE

CCDE Practical Exam Reading List

-+*The following list is a compilation of recommended reading to assist in the preparation for the exam. These books are not required study resources, however, they can be used to build knowledge in certain areas.   Cisco Press Titles: These

Posted in CCDE

CCDE Practical Exam v2.0

-+*Exam Description   Cisco CCDE® Practical Exam v2.0 is an 8-hour, scenario-based exam that will validate that professionals have the expertise to gather and clarify network functional requirements, develop network designs to meet functional specifications, develop an implementation plan, convey

Posted in CCDE

CCDE Written Exam (352-001) version 2.0

-+*Exam Description   Cisco CCDE® Written Exam (352-001) version 2 is a 2-hour test with 90−110 questions that will validate that professionals have the expertise to gather and clarify network functional requirements, develop network designs to meet functional specifications, develop

Posted in CCDE