Lack of Availability at All Locations It is not uncommon for SMEs to have multiple
offices physically served by different Service Provider networks because they are
located physically across more than one Service Provider??™s footprint (e.g., a SME has
offices at location A, B, and C, and the respective telecom services are being delivered,
perhaps due to regulatory and/or competitive constraints, by Service Providers 1, 2,
and 3, respectively. Note that locations can be in the same or different cities and/or
countries).
Such SMEs frequently do not have Ethernet services offered at each of their locations
(perhaps they are not served by fiber or there could be other competitive and economic
reasons) and consequently, do not subscribe to Ethernet services at all.
Lack of Key Carrier Attributes The SME customer base (over 95 percent as stated earlier) is
often served by legacy ATM, Frame Relay, and private line services today to support their
voice, data, and video applications. While they recognize the value of Carrier Ethernet
(see Chapter 1 for a detailed listing of the benefits), there is some hesitancy to migrate to
Carrier Ethernet due to the (perceived22) lack of service features that are deemed important
and that they??™re accustomed to with their legacy services.
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