A network analyzer prevents unauthorized access to your information system and reduces an improper usage of your network. In addition, network analyzers also help in troubleshooting network problems.

Using network analyzers, you can record and analyze critical network information such as the packet sizes, the number of packets, the usage of a connection, the number of hosts and other details about communication between hosts and other devices.

Some of the important parameters you must consider before purchasing a network analyzer are:

1. Frequency range of the network
2. Number of ports available
3. Data transfer rate for the network
4. Buffer memory size for the network analyzer
5. Scope for updating or customizing the network analyzer

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

Buy a network analyzer from a reputable manufacturer

Once you understand your requirements and have enough information about network analyzers, check out network analyzers offered by reputable manufacturers in order to select the right product for your network analysis.

I recommend: Agilent Technologies, a manufacturer of various types of analyzers, provides electric network analyzers and accessories. Fluke Networks is another supplier of network traffic analyzers for LAN (local area network), WAN (wide area network) and wireless networks. You can also buy a vector network analyzer at Rohde & Schwarz, a supplier of electronic testing equipment. If you are looking for a handheld network analysis tool, check out the products offered by Anritsu. Finisar, a network performance test systems provider, offers an array of network analysis software and hardware systems.

Buy used network analyzers

Buy a used network analyzer for a cost effective solution. However, make sure that the used network analyzer is capable of doing the job right and requires minimal modification.

I recommend: Test Equipment Connection, a supplier of electronic test and measurement, provides used network analyzers. ValueTronics offers used and refurbished electronic test equipment including network analyzers. MetricTest is another computer testing equipment retailer that also provides used network analyzers.

Lease a network analyzer

If you require a network analyzer for a short-term duration, then leasing can be a better option.

I recommend: Avalon Equipment rents network analyzers and accessories from reputable electronic equipment manufacturers. Instrumentation Sales & Rentals offers a rental service for test equipment, including network analyzers. Spectra Test Equipment is another retailer that sells and rents reconditioned network analyzers.

Tips & Tactics

Helpful advice for making the most of this Guide

• •  Purchase a network analyzer from a manufacturer that provides regular updates and patches for your network analysis software. This will keep your network analysis system virus free and efficient.
• •  While updating your network analysis software, check its compatibility with the existing hardware system.