It must be noted that the list of
vendors is current but given the industry dynamics it would likely need to be revalidated
often.
References
1. ???Metro Ethernet Forum (MEF) Technical Specification 4,??? Metro Ethernet Network
Architecture Framework ??“ Part I: Generic Framework, May 2004. www.metroethernetforum.
org
7 By cost, we mean the cost to the Service Provider to deploy a particular solution; this is typically a
function of several complex variables.
131
Chapter 5
Copper
by Dr. Matt Squire
One of the more difficult aspects of delivering carrier Ethernet is the footprint
problem??”Ethernet simply does not reach every customer today. Certainly, that is
changing as fiber deployments continue, but even with today??™s massive fiber builds
for IPTV, it will still be decades before the majority of businesses and consumers have
direct optical access. Alternatively, carriers can deploy Ethernet over low-bandwidth
T1/E1 connections. These alternatives represent the ???high??? (optical) and ???low??? (T1/E1)
bandwidth opportunity. But there is a huge need for a middle ground??”a need for
more bandwidth than with T1/E1 but less bandwidth than with optical services.
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