Chances are, if you're using local area network (LAN) at work, you're already using a network processor. Older technology often uses a standard pre-configured network processor design to handle a business's networking needs. However, constantly expanding technology and larger networks require more complicated hardware.

If you're looking to expand your business' network capabilities, it's best to consider your needs carefully so you don't waste money on useless bells and whistles, or buy a network processor that doesn't support the applications you need. You'll be best off choosing a network processor design that is:

1. Flexible, so you can adjust it to meet your needs. If you're planning future upgrades, make sure the network processor supports your new hardware.

2. Supports wide variety of applications and network printing. This allows you to use the most efficient and up-to-date software.

3. Compatible a wide variety of security safeguards, such as encryption and a firewall for network communications and beyond.

Action Steps
The best contacts and resources to help you get it done

Buy network processors specifically made for a business of your size

Many processors are optimized for mid-size or home businesses. If you're planning to use your computer network processors on a larger scale, you'll need to find a network processor vendor that caters to large business networks by providing extra ports and more bandwidth. Make sure your network processor supports multiple wide area networks (WANs) if you plan on connecting more than one network to your processor.

I recommend: Consider Hifn's 5NP4G network processor for light business use. Mindspeed's EdgeMaker series can handle heavier traffic loads.

Check for voice over IP Support when picking a network processor design

To work with voice over internet protocol (VOIP), network processors should have at least two high speed ports capable of connecting to SLIC/CODECs or T1/E1, as well as good network security. Processor models sometimes provide even more robust support for VOIP, so if your company plans to do a lot of calling it's best to consider your options.

I recommend: Choose a model like Xelerated's HX330 Series or LSI's APP3300 model, which is designed for telecom equipment.

Look for a Tolly testing certificate when browsing network processor manufacturers

Tolly is an independent testing company that reviews network processor features and hardware by using performance benchmarks and testing. Tolly regularly issues reports on network processors that detail the good and the bad, along with comparisons between rival technologies.

I recommend: Check out the Tolly-certified S7900E model from 3Com, or Intel's IXP2XXX product line, which is also Tolly certified.

Tips & Tactics

Helpful advice for making the most of this Guide

• •  If you plan to use your network processor for functions that require specific software, purchase a fully-programmable network processor. These often support more applications than a semi-programmable network CPU, and provide greater customization.