While data rates have been extended with the latest versions of the DOCSIS
specifications, and numerous extensions have been introduced in order to support business
customers, the other aspects of this statement still ring true. DOCSIS technology
is clearly a good solution as part of a voice+data+video service offering where channel
capacity is shared by a large number of customers. Further, with the maximum CMTSCM
optical/electrical spacing of ~100 miles, DOCSIS technology works well in serving
dense (urban) to moderately sparse (suburban) populations.
From the Carrier Ethernet customer??™s perspective, Ethernet services over a DOCSIS
network are a clear fit where data rates in the range of 10s of Mbps to the low 100s of
Mbps are required. A DOCSIS network may be a particularly cost-effective solution
when a customer has low committed information rate requirements, but high burst
data rate requirements (especially when the peak data rates occur outside of the typical
residential data peak demand times).
When Does This Solution Not Fit?
From the Service Provider??™s perspective, a DOCSIS network might not make sense in a
dedicated point-to-point link serving a single customer or in a link in which coexistence
with video services is not necessary.
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