|
||||
|
|
||||
|
|
||||
|
|
||||
|
Technical
Research Objectives The overall objective of the
proposed work is to develop novel provisioning and fault recovery techniques for
multicast/broadcast connections in mesh WDM optical networks. The algorithms
designed will be incorporated in a software simulation/design tool that can
be utilized by network designers and researchers to design and evaluate the
performance of core mesh optical networks when such applications are present.� Additionally, a novel optical control plane
will be developed that can accommodate the deployment of these provisioning
and protection techniques. The specific scientific and technological
objectives of the proposed project are as follows: (1) We will develop algorithms for routing full wavelength and
sub-rate (grooming) multicast and broadcast connections for transparent
optical networks. The percentage of the arriving multicast/broadcast requests
that can be established and the cost of the light-trees will be our
performance metric in this case; (2) We will extend the provisioning of multicast connections to
include the provisioning of protected multicast and broadcast trees,
utilizing dedicated as well as shared protection techniques. Redundant
capacity requirements and recovery times will be analyzed and evaluated; (3) We will design protocols and a control plane to provision
protected multicast/broadcast services in transparent optical networks
utilizing the algorithms developed in (1)-(2); and (4) We will develop a software tool for simulation and design purposes
of optical mesh networks that can provision all types of connections (unicast,
multicast, or broadcast), having full-wavelength or lower-rate traffic
demands and protected or unprotected characteristics. Test case networks will
be used to evaluate the validity of the simulation tool. Performance results
for various algorithms and topological designs will be evaluated and compared
using this tool for the purposes of finding architectures and algorithms that
provide multicast/broadcast services that meet different types of provisioning
and resiliency requirements. |
||||
|
|
||||
������������������������������������������� ����������������������