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4 Ways To Get Your Opt In Subscribers To Trust You Quickly
While the rest of the world have developed many barriers and protections to keep their e-mail accounts spam-free, there are also those that subscribe to mails that promotes their products, services and their site. This is mainly because these...
Anti Spam at the Enterprise Level
Copyright 2005 Richard Keir
Every one of us knows how spam impacts us. Every day we either get a ton of spam - or if we're fairly well protected by spam filters - only a few pieces.
Like a large number of people, I don't use any spam filters....
HOW TO GET THE COMPUTER YOU WANT WITHOUT SPENDING A FORTUNE
HOW TO GET THE COMPUTER YOU WANT WITHOUT SPENDING A FORTUNE By M. Nasser Bey I have been using computers for years now and have never owned a new one. Like many people I had little money when I started looking for a machine. Back in the early...
Security: Firewalls
If you spend a lot of time on the internet and you are not behind a firewall, then you are living on borrowed time. Putting some protection between you and the internet is probably the third most important thing that you can do (after getting virus...
Unleash The Dragon … Inside Your Computer!
What can you do to avoid computer slow down? – Part One Last week I promised you an article about avoiding computer slowdowns. The topic is so close to the hearts of most computer owners that I want to write about it over two articles instead of...
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Cisco CCNA / CCNP Home Lab: Why You Need An ISDN Simulator
ISDN is a vital topic for today's CCNA and CCNP candidates, especially for the ICND and Intro exams - you've got to know ISDN inside and out to pass those exams. Naturally you want to include it in your home lab.
What many candidates don't realize is that you can't connect two Cisco routers directly via their Basic Rate Interface (BRI) interfaces you've got to have another device between them called an ISDN simulator.
An ISDN simulator is not one of those software programs pretending to be routers ("router simulators") this is a piece of hardware that acts as the telephone company in your home lab. Older simulators come with preprogrammed phone numbers and SPIDs, where newer ones let you program the phone numbers you want to use. Either way, an ISDN simulator is great for your CCNA/CCNP home lab, because you can practice dial scenarios that actually work. And you get to troubleshoot the ones that don't, which is also important to learn!
You don't need any special cables or connectors you just connect both of your routers' BRI interfaces to the ISDN simulator with a straight-through cable and you're ready to go.
In years past, this was a major problem for 640-801, 811, and 821 studies, because the simulators used to be so expensive. New ones can still be pricey ($600 and up), but with the sudden influx
of used ISDN simulators on ebay and Cisco resellers, you can get a used one that will do the job for you.
Why are there suddenly so many ISDN simulators on the market? Cisco recently removed ISDN from the CCIE R&S exam, so a lot of CCIE rack resellers as well as private individuals are selling their simulators. There's never been a better time to add ISDN to your home lab. If taken care of (kept out of extreme heat), they can last for quite a few years. The one I purchased for my IE home lab is still working well.
If you choose to purchase a new simulator, you can run a Google search to find vendors. I've made two purchases from www.vconsole.com over the last few years and both of those simulators have worked beautifully.
As I said earlier, there's never been a better time to add ISDN to your home lab. Don't just settle for trying to memorize theory - get your hands on the real deal, practice and fix your configurations, and you'll be amazed at what you learn and how well you do on your CCNA and CCNP exams!
About the Author
Chris Bryant, CCIE #12933, is the owner of The Bryant Advantage, home of FREE CCNA & CCNP tutorials. For a FREE copy of my latest e-books, "How To Pass The CCNA" or "How To Pass The CCNP", request one at chris@thebryantadvantage.com!
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| Tom's Hardware |
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| Computer hardware - Wikipedia, the free encyclopedia |
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| InformationWeek HardwareTech Center |
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| What is hardware? - A Word Definition From the Webopedia Computer ... |
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| HwB: The Hardware Book |
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| Reg Hardware: Product News and Gadget Reviews from The Register |
| More Gadgets Stuff. 5th December 2006 12:09 GMT. Author: Reg Hardware ... 27th November 2006 15:31 GMT. Author: The Hardware Widow ... |
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| red hat hardware compatibility lists |
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| TrueValue.com |
| Here's our tip to hang strands of lights with ease. Jeanenne & Jim Tucker Plantation True Value Hardware Richmond, TX ... |
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| A complete illustrated Guide to the PC Hardware |
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| www.karbosguide.com |
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