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August 2011 Newsletter ...



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I-Net Solutions' MPLS VPN provides a modern, fully integrated and highly secured IP network to support all your applications, including real-time applications like Voice over IP and streaming video.

MPLS Basics

MPLS is a form of protocol, rather than a specific type of service. It can be used to deliver any type of circuit that a customer needs, from IP VPNs to optical connectivity.

Packet Labelling

The key to MPLS is its ability to label data packets. In traditional IP networks, packets are routed based solely upon the data's network-layer header. The arrival of each packet forces a router to "decide" where it should go next with no regard for its actual content.

The Need for Speed

MPLS greatly speeds up the routing process by labeling each packet as it arrives on the network. Each network router stores information on how to handle different packet types, as indicated by their header label. This directly translates to higher efficiency by lightening the load on an organization's routers and freeing up needed resources. Speed of packet transmission is increased as the load on network infrastructure is reduced.

Not All MPLS Traffic is Created Equal

The inherent advantages of MPLS are most noticeable in situations where real-time traffic is configured to be given preference over data packets that do not require the same amount of speed or priority. With a traditional IP circuit, all traffic is treated equally. This becomes a critical problem when demand for bandwidth temporarily exceeds the capacity of the circuit. The only form of prioritization on most traditional IP networks is "first come, first served", with no special treatment being given to real-time sensitive traffic like voice and video conferencing.

Priority Treatment

As an example, a large e-mail attachment of personal photos being sent to an employee's personal mail account would normally receive the same network priority as a real-time video or audio conference being held by company executives. The result can be phone calls or video transmissions of inferior quality, as the two sources battle against one another for priority. An MPLS network on the other hand will instantly assign a high priority to real-time voice and video. E-mail traffic and other connections that are not as likely to be affected by latency will be pushed to the back of a router's queue to make way for high-priority traffic. This noticeably improves the performance of real-time applications and has a minimal effect on lower priority traffic such as e-mail, where a delay in milliseconds is almost impossible to detect.

Life, and Networks, Require Proper Priority

In a nutshell, MPLS puts your high-priority, mission critical IP traffic in the fast lane to its destination. All of this is done seamlessly, with absolutely no interaction needed on the part of the customer and with no significant changes to their network infrastructure. It's like having a network engineer inspecting each and every packet on your network, and deciding how to load balance the circuit based upon the data's importance. MPLS is truly a value-added service that can pay for itself each and every month.


MPLS VPN Case Study: KSM Electronics