Broadband Telecommunications Handbook by Richard W. Baker

By Richard W. Baker

Broadband telecommunications, the supply of lightning speedy net entry to the house or workplace, is a box complicated, competing applied sciences: DSL, cable, instant, optical, and lots of extra. This publication breaks down each one broadband expertise and explains it by way of functionality, asking Bates' three Questions: what's it, what is going to it do for me, and what's it going to price me?

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Security The basic concept of a VPN is to provide a secure , point-to-point connection across the network between communicating entities. A couple of words about security are important to keep our paranoia in check. ” To answer that question, we must consider the impact on our business if the data we are sending is: 1. 2. 3. 4. Simply Lost. Is there a backup mechanism for sending or recovering the data? ” The answer to these questions will help us decided how much security is enough. Note that in the foregoing example, one can equally substitute the word “hacker” for competitor.

The firewall handles Web (HTTP) requests, while the VPN box handles access to your internal database. Figure 3-4 shows the firewall and VPN box in parallel, reinforcing the division of labor between the two boxes. Because we now have two “holes” into our network, it is imperative that we have the permissions and access rights set up correctly. The firewall should not let users in who would be required to authenticate via the VPN box. Figure 3-4: Stand alone VPN equipment divides access to the network The integrated solution that some vendors are offering is an integrated custom box that does routing firewall and VPN all under one roof.

These are priced at the reduced rate. Calls to business partners and customers are off-net calls and are charged at a higher rate. If the off-net call volume to these specific locations rises, the organization can still place FX lines into these areas. Again, there is no substitute for knowing the traffic distribution when evaluating any telecommunications plan. As one can determine from the above description, it takes a sharp pencil to figure out if this is a good deal. It is definitely a good deal for the carrier who gets all those calls and minutes back on the switched network.

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