Internet Access (WAN) Links
Each WAN technology may be used to build both public and private WANs; some are just a more natural fit for one or the other. However, just to be complete, note that all the WAN technologies discussed in the first half of the chapter happen to work just fine as Internet access technologies, particularly for businesses. Businesses often use TDM serial links, Frame Relay, Ethernet WAN services, or even an MPLS service to access the Internet. Figure 15-6 shows a few of these, just as a visual reminder of these options.
Figure 15-6 Three Examples of Internet Access Links for Companies
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