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a private communications network connecting multiple geographically diverse local area networks facilitating communications between them
 

The key fundamental of good network design is to ensure that bottlenecks do not adversely affect the performance or capacity of the overall system

By definition, a wide area network is a network that interconnects multiple local area networks using wholly private communications technologies. The evolution of the Internet or, more to the point, of the internal networks of Internet service providers has delivered options for wide area networks that have made them increasingly more affordable. Leased line, frame relay and ATM remain appropriate for many organisation’s wide area networking requirements, while many are considering MPLS and virtual private networking implementations in order to achieve significant cost savings.

Like any network, however, a wide area network must serve the purpose for which it is intended. Typical business intentions might include reducing equipment such as servers, centralising applications such as email, or facilitating unmetered voice calls between campuses. And so, when designing a wide area network, or any network for that matter, it is crucial to first understand the services and applications that the network must support. For example, it would be inappropriate to schedule over an unconfigured wide area network network a daily backup of a remote file server if that network was also intended to deliver a business application, because the backup would severely impact the performance of the business application.

Most networks are intended to support many applications. Most applications have particular behavioural characteristics. It is important to understand the applications and their characteristics in order to design and implement suitable network. Of equal importance is understanding the intended or likely future characteristics of the applications, which will help to ensure that any design decisions are future-proof.

The key fundamental of good network design is to ensure that bottlenecks do not adversely affect the performance or capacity of the overall system. Good wide area network design gives particular consideration to the network and transport layers of the OSI Model and TCP and UDP protocols.

Remex has more than a decade of experience in designing, implementing, supporting and evolving networks that meet our client’s requirements.

Actual example:

The Australian arm of a large multinational named Akzo Nobel Chemicals had offices in Sydney, Brisbane, Melbourne, Perth and Onslow (a small town south of Karratha, WA).

They had an ISDN WAN that was not meeting their network requirements, but the cost of increasing the speed was too high.

Remex recommended the implementation of an MPLS-based network that initially delivered almost twice the speed at a saving of 35% per annum.

Akzo were not confident in deploying this new MPLS network. They commissioned Remex to perform the work.

Remex deployed engineers to each of the five campuses across four states and successfully completed the cut-over from old to new network in two days, during which time less than an hour of network downtime was experienced.

If you feel that you could benefit from Remex’s expertise in Wide Area Networking, simply complete this form and we will contact you free of charge to discuss your situation and identify how we might be able to help.

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