Service Support and Traffic Management Ethernet as a service has largely covered a set of
informally (and often ill) defined point-to-point services usually deployed over a fiber infrastructure.
As Ethernet moves to the MAN and WAN as an increasingly serious contender
for more sophisticated services based on multipoint architectures, there is an urgent need
to formally define (and standardize) fundamental Ethernet services and their underlying
features. This standardization would enable interoperability, clarifying what can be expected
from such services and consequently encouraging wide-scale deployment.
In the MAN/WAN, traffic management is considerably more complex than in the LAN,
where it is basically a best effort (and is often adequate). In the MAN and WAN, where
the Service Providers invest significantly in transmission assets (for example, fiber and
other transport equipment) and their manageability, a better return on investment is
sought. This will require an ability to oversubscribe traffic and other related capabilities
such as prioritization and service assurance.
Scalability While Ethernet has evolved impressively, it still largely remains a LANfocused
technology.
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