Provins Sirock Technology Site

Archive for January, 2011

A CCNA or CCNP candidate who wants to be totally prepared for their exams is going to put together a home lab to practice on. With used Cisco routers and switches more affordable and plentiful then ever before, there’s really no excuse to not have one!

With the many different models available, there is some understandable confusion among future CCNAs and CCNPs about which routers to buy and which ones to avoid. You can take almost any set of Cisco routers and put together a home lab; part of the learning process is taking what equipment you have available and putting together your own lab! For those of you preparing to start your home lab or add to your existing one, this article will list the routers I use in my Cisco pods. You certainly don’t have to have all this equipment, but this will give you some good ideas on how to get started.

The most versatile router you can get for your CCNA / CCNP home lab is a 2520. These routers come with four serial ports, one ethernet port, and one BRI interface for ISDN practice. This mix of interfaces means you can actually use it as a frame relay switch while using the ethernet and BRI ports for routing. (There is no problem with using a lab router as both your frame relay switch and a practice router; for a frame relay switch sample configuration, visit my website!)

My pods consist of five routers and two switches, and three of the five routers are 2520s, due to their versatility. A recent ebay search showed these routers selling for $99 – $125, an outstanding value for the practice you’re going to get.
Read the rest of this entry »

Before you decide to go wireless or not, there are many points to consider. You may be asking yourself if wireless is for you. Well, today, many people are asking themselves the same question. If you watch the headline news, you are bound to see stories involving mergers, federal regulations, and new tax rules. This all points to the fact that VoIP has made a definite impression on American citizens and is here to stay. It may be difficult for some people to remove the telephone cords from their homes; we have depended on them for over 100 years. But once many people take the time to weigh the pros and the cons, most choose to go wireless. Here are some reasons, why you should make the switch to wireless.

1. Wireless Creates a Faster Network

Wireless networks are fast. With VoIP, you can create a network that incorporates data, audio, video, and computer web features. You can easily monitor your network for problems and troubleshooting is much simpler with web based applications rather than hardware applications. VoIP uses less bandwidth than other applications and this in the long run saves money. This is of special value to businesses. Businesses can also provide better customer service with integrated programs. Not only does this increase productivity, but also it saves time and money in the long run.

2. VoIP Saves You Money

Overall, VoIP is much more inexpensive then PSTN. You simply pay for your Internet service, and then whichever VoIP provider you choose. For a one time monthly fee, you can have unlimited local and long distance phone calls. You will need to check with the VoIP service provider that you choose for exact details on their rates. Sometimes, your VoIP service provider will allow free calls within the world to another computer, yet there may be a fee for calls worldwide to a landline phone. Always check with your chosen service provider for exact details regarding your chosen plan. Included in many VoIP service plans are free features. These features include Voicemail, Caller ID, Call Waiting, Do Not Disturb, and more. Again, check with your chosen service provider for an overview of all the features bundled with your plan. The biggest benefit is the unlimited long distance calling. This has proven to be the number one reason why most businesses are switching to VoIP. For businesses such as sales or jobs that have mobile employees, these benefits go without saying. But overall, the average cost of VoIP is considerably less when compared to the cost of PSTN.
Read the rest of this entry »