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WAN network topology

What topology would be best for a WAN network for me to connect with our main office in Sydney and in the UK?
To answer that question I would need to ask you two questions.

1) What WAN technologies are available at the sites you wish to interconnect?

2) How much money is budgeted for the project?

A good place to start would be to determine the needs, requirements, and budget. That will help make sure this project meets its expected needs.

Consider the following:

1) VPN ? Use your existing Internet connections at each site to tunnel traffic. An advantage of this approach is that you get duel use of your existing infrastructure.

2) Dedicated Line E1, E3 (T1, T3). This would give you a dedicated connection between the sites but can get pricy as you are charged whether or not the service is utilized.

3) Packet Switching (ATM, Frame Relay, X.25). These technologies may offer lower rates that a dedicated line but limit the data throughput. This limit or CIR (committed information rate) is the maximum amount of data normally allowed, however it may exceed this for a short duration of time or if others are not utilizing the "clouds" potential.

I hope these choices help you move toward an effective solution.

This was last published in February 2003

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