As
such, Ethernet will not become a service delivery platform, but service delivery platforms
must evolve to support the transport of Ethernet at any required bandwidth.
Ethernet connectivity will expand as methods are developed to support efficient and
economical transport. The key to expanding the size of LANs beyond a small geographic
area is to enable existing service provider networks to support the transport
of Ethernet. The introduction of carrier-grade Ethernet has changed this. Carrier
Ethernet is rapidly becoming the technology of choice for both service and network
convergence.
Ethernet Transport Applications
A few common applications for Ethernet transport are described here:
?– Enterprise LAN extension Today, network nodes on a LAN must be in close
physical proximity due to the distance limitations of the underlying Ethernet technology.
The inability to add remote nodes to a LAN is strictly a matter of transmitting
the Ethernet frames and is not an inherent limitation in the network protocols
or other scaling issues. An enterprise with facilities in multiple locations may wish
to share resources between the locations.
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