Abstract
We propose an all-Ethernet end-to-end communication framework for the
access, metro and core networks called Omnipresent Ethernet (or OEthernet).
The proposed hierarchy is based on two inherent assumptions: (1) present
manner of interconnection in carrier networks from a graph theory
perspective and (2) recent advances in Carrier Ethernet. The OEthernet
approach makes good use of the advances of Ethernet from the LAN to the MAN
and now to carrier networks, while inducing pragmatic traffic requirements
for end-to-end communication. The OEthernet concept is a new end-to-end
communication paradigm focused in particular to meet emerging service needs
taking business requirements into consideration. The proposed solution is
based on concepts of binary routing, source routing, logical topology
abstraction and tagged connection oriented flow provisioning leading to a
new communication hierarchy that facilitates end-to-end communication. This
end-to-end solution uses Ethernet and its associated advances as an enabler
technology. We define the advantages, the technological choices and the
traffic assumptions for this end-to-end Ethernetworking hierarchy. Following
which we postulate simple algorithms for converting an arbitrary network to
one which facilitates source routing and binary routing—two
concepts that are instructive in our solution. Subsequent to the conceptual
explanation the engineering aspects of the implementation are detailed. In
particular end-to-end communication using our solution, in the presence and
absence of IP as a network layer is showcased. The solution is analyzed from
a utilization and delay perspective. An optical implementation of the
end-to-end OEthernet solution for enterprise networks is also proposed.
Included is a new node architecture leading to a class of optical networking
called O-BiS or Optical Bit-Switching. Comparison with existing approaches
as well as positioning with respect to all-IP networks is then showcased.
Triple Play services are simulated over our networking solution to validate
our results.
© 2010 IEEE
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