Archive for the ‘Networks’ Category

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Printer Problems On A Network

February 19th, 2010
posted by Admin 2:01 pm

Many people decide to have more than one computer. This could be for many reasons. If you are a part of a company you usually have more than one computer. In order to save money and resources hardware such as printers needs to be shared. These printers are normally not in the same room or at least are not close to you.

Please note that you may not be able to do this yourself if you are on a network. In larger companies this is controlled through a print server or can only be done by authorized individuals. You may need to contact your computer staff or network administrator.

What if you can’t print?

Here are some reasons:
1. The printer is out of paper. I have seen people try to print over and over again only to find out the printer is out of paper. Normally an error will appear on their screen. Most people are persistent that they can beat the system. They seem to think they are actually dealing with a living being.
2. It isn’t turned on. This is also a big one. Again! Yes again! People will constantly try to send to the printer with out ever checking it physically. Even though these printers are not supposed to be turned off, do not assume anything.
3. The power plug is disconnected. Maybe somebody moved it or just unplugged it for some reason.
4. The data cable is disconnected. Maybe somebody just bumped it or whatever.

The above reasons are approaching the problem as a physical one. The problem could also be that the driver is corrupt. This is the program the makes it work. The operating system could have something wrong with it. Read the rest of this entry »

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The Importance Of Keeping Up With Wan Optimization Techniques

February 12th, 2010
posted by Admin 1:58 pm

To understand the different techniques used by appliances offering WAN optimization, it’s important to first define exactly what exactly a ‘WAN’ is. WAN stands for ‘wide area network’ and refers to any network that covers a very large geographic area. By contrast, a LAN, or local area network, refers to networks that provide internal communication in a home or small office. The internet as a whole can be defined as a WAN and is obviously a public network, while an example of a private WAN could be a corporation with offices in San Francisco, San Jose, Austin, Boston, and New York. Each individual office would have a LAN set up internally, but could also use DSL or MPLS connections to form a WAN to share information between offices.

There are a number of performance-related issues that typically occur with WANs, which has led to the development of various WAN optimization techniques. These issues can include redundant transmissions, ‘chatty’ protocols, and packet delivery issues. Some of the common techniques used to achieve WAN optimization include: Bandwidth Management; Caching; and Protocol Optimization. Multiple vendors offer WAN optimization appliances that use a number of these techniques to process the IP traffic traveling between the sites over the company’s WAN. Not every solution uses the same techniques, thus the benefits can vary, which is important to understand when researching a vendor or supplier.

Bandwidth Management allows applications to have set limits and minimums with regard to how much bandwidth they use. For example, this technique would allow you to put a limit on the amount of bandwidth an especially avaricious application can use. Conversely, bandwidth management can ensure that less-used applications always have a guaranteed amount of bandwidth allocated to them. Read the rest of this entry »

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How To Build A High Performance And Secured Network?

January 7th, 2010
posted by Admin 2:04 pm

If you would like to build a wireless network from the scratch, it is recommended to use the best wireless network based devices, using the current wireless technologies available at the marketplace today.
The best wireless network should consist of wireless devices and wireless standards which can provide the best technologies in three main areas. Firstly, the wireless devices and standards should provide the fastest wireless network. Secondly, wireless devices and technology used should provide the farthest network coverage. Thirdly, the wireless security standard should provide the most secured network to protect the private network against any types of network threats.

The Best Wireless Network in Speed

The fastest and the best wireless network available at the market today is draft 2.0 802.11n standards. This is the latest industrial standards today – the future technology, but it is still not ratified yet. Even though it is not finalized yet, mostly all the wireless manufacturers ship their lines of wireless products based on this draft standards. The recent manufacturers ship their products and claimed that the wireless network can provide the speed up to 300 Mbps. However, this is all theoretical, in a sense, due to the fact that routers never achieve the maximum throughput they’re rated at (802.11b at 11 Mbps and 802.11g at 54 Mbps).

Wireless –n router is not guaranteed to work with the final 802.11n standard when it arrives in another year or so. Why, then, should you invest in pre-release technology with iffy chances of operability in the future? Because, this draft version is assured to be backward compatibility with the current industrial standards 802.11b and wireless 802.11g wireless devices, and can be used to fill in the gaps of your wireless network today. Besides, when the draft 802.11n has been ratified officially as the fastest wireless industrial standards, it is widely believed that there will be no hardware changes. The only thing you need to upgrade is the firmware that will be freely downloaded from the official vendor’s websites. Even some vendors design their products with the capability of download the recent firmware automatically when it connects to the internet. Read the rest of this entry »

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