Wide Area Network

Wide Area Network (WAN)

Wide area networks are similar to Local Area Networks (LAN) with the addition of dial-up access between computers or LAN segments via router systems or access modems.

Advantages:

Allows users at remote sites to access network files and resources.
Documents can be available to network, or secured to certain users only.
Allows for telecommuting and more flexible work schedules.

Disadvantages:

Database applications may perform slowly over WAN, depending on dial-up connection.
Requires more maintenance and greater abilities from Network Administrator.
A failure in dial-up lines prevents remote networks from accessing network.

Customer needs to determine:

What data on the main server will be accessed by remote network or stations?
What interoffice communications software will be used?
Will a remote server be needed to mirror the main server?

Customer should make arrangements for:

Access lines (T1, ISDN, or 56k telephone router).
Corporate Internet Service, If required.
Training for administrators at remote and main network sites.