- to improve application performance

eBusiness Help
Rackspace managed Hosting: Fanatical Support™ and Guaranteed 100% network uptime.
1 hour hardware fix and many more business critical support features.
Sweet deals for iEntry members! Out with the old, in with the new...
if you have equipment that qualifies for trade-in, get a discount of up to $720* off the Web price on featured IBM ® ThinkPad ® notebooks.

WebProWorld Networking Forum

English to Spanish Software???
Do you know of any good software that will transfer from English to Spanish. I have a lot of word doc. that need to be translated into Spanish.

The Linux Server Break-in challenge
Ever thought of trying your skill at a professionally set up server? If you are ready, enter. The Linux Server Break-in challenge. You will have a server available on the Internet 96 hours without interruption starting from 9 March 2005 2 AM IST.


Recent Articles

Cisco CCNA Exam Tracks
With the latest version of the CCNA exam, Cisco offers two possible exam track options of either one or two exams. The exam consists of 55-65 questions over 90 minutes and covers all CCNA exam topics

Debug and Show commands for ISDN
The major reason I recommend getting your hands on real Cisco equipment rather than a simulator is that real Cisco routers give you the chance to practice and learn show and debug commands.

03.14.05

Surviving The Cisco Cable Jungle

By Chris Bryant

One of the most confusing parts of beginning your Cisco studies is keeping all the cable types separate in your mind, and then remembering what they're used for.

This often occurs when a CCNA or CCNP candidate starts putting together their own home practice lab, and they suddenly realize that they have the equipment to run labs, but not the cables.

With this in mind, here are some common Cisco cable types and their primary use.

First, there's the regular old "straight-through cable", so named because the eight wires inside the cable go straight through the wire. While the wires may be twisted inside to reduce electromagnetic interference (EMI), the wire that's connected to Pin 1 on one end is connected to Pin 1 on the other end, and so on. In a home lab, a straight-through cable is often used to connect a switch port to an Ethernet port on a router, with a transceiver attached to the Ethernet port. Straight-through cables are also good for connecting a BRI interface to an ISDN simulator.

- to improve application performance

The "crossover cable" is so named because the wires do cross over between pins. This allows the devices to both send and receive at the same time, and crossover cables are a must for directly connecting ports on Cisco switches to create a trunk.

The "rollover cable" allows you to connect directly to a Cisco console port with your laptop or PC. This is the blue cable that comes with new Cisco devices, and it's the one that engineers tend to hold on to with their lives. Without a rollover cable (also commonly called a "console cable"), you can't connect your laptop directly to a Cisco device.


Finally, there's the DTE/DCE cable. To create a frame relay cloud in your home lab (using one of your Cisco routers as a DCE), or to directly connect two Cisco routers via their serial interfaces, you will need a DTE/DCE cable. Remember that the DCE interface will need to supply clockrate to the DTE interface.

The different cable types can be confusing when you first read about them, but after tearing down or building your home lab a few times, you'll definitely have them straight come test day!


About the Author:
Chris Bryant, CCIE™ #12933, has been active in the Cisco certification community for years. He worked his way up from the CCNA to the CCIE, and knows what CCNA and CCNP candidates need to know to be effective on the job and in the exam room.

He is the owner of http://www.thebryantadvantage.com, where he teaches CCNA and CCNP courses to small groups of exam candidates, ensuring they each receive the individual attention they deserve. Classes are offered over the Internet and in select cities. chris@thebryantadvantage.com.

About NetworkNewz
NetworkNewz editors, writers and contributors focus on both the big picture and the details of networking. At NetworkNewz our goal is to deliver to you The Key To Network Management.

NetworkNewz is brought to you by:

SecurityConfig.comNetworkingFiles.com
ITmanagementNews.comWebProASP.com
DatabaseProNews.comSQLProNews.com
ITcertificationNews.comSysAdminNews.com
LinuxProNews.comWirelessProNews.com
CProgrammingTrends.comITmanagementNews.com


-- NetworkNewz is an iEntry, Inc. publication --
iEntry, Inc. 880 Corporate Drive, Lexington, KY 40503
2005 iEntry, Inc.  All Rights Reserved  Privacy Policy  Legal

archives | advertising info | news headlines | free newsletters | comments/feedback | submit article

The Keys To Network Management Ask Questions in the Networking Forum NetworkNewz News Archives About Us Feedback NetworkNewz Home Page About Article Archive News Downloads WebProWorld Forums Jayde iEntry Advertise Contact