Users and applications need to own greater ability to control network resources for satisfying their requirements and new
service pattern. Optical grid nodes include resource, control and switching functional. Optical grid testbed is built to
verify node structure and five character of optical grid on ASON network, which involve application-driven, grid service
and optical resource uniting, parallel lightpath scheduling, wide resource sharing and multi-granularity bandwidth
service. An optical grid node function framework and physical implement scheme is proposed based on distributed
network architecture orienting on-demand resource service. Considering the proposed optical grid scheme,
corresponding control mechanism is given to satisfy the resource requirement for grid applications and realize distributed
resource scheduling on demand.
Divisible loads can be divided into any number independent sub-tasks, and map them on different platform to be
processed in parallel jobs. Divisible load theory is introduced into parallel and distributed computing system to obtain
available resources distributing on different locations for reaching processing efficiency, which can be extended to
distributing multimedia and application system based grid. Light path scheduling algorithm based on DLT is proposed to
realize optical resource scheduling on demand in optical grid under the requirement of intensive data applications,
especially facing to parallel and distributed system. The proposed algorithm introduces the Divisible Load Theory as
load distributing method and is extended for the distributed algorithm of divisible load scheduling to match multichannel
application requirement of optical grid network. The proposed method deploys multiple wavelengths for original
node, and builds parallel lightpaths to transmit independent divisible loads to collaborating nodes for a big task.
Manage and control mechanism orienting grids on distributed optical network is proposed to provide network resource
sharing and management for widely distributed resources. WS-based distributing GMPLS network integrating with grid
resource co-allocated is specified as a network resource control approach. Grid service architecture mechanism is
introduced into distributed optical network to provide sharing network resource and a distributed managing method for
widely sharing resource platform. Combining with Web service, as an entity representing distributed optical network,
optical grid will be a good solving on distributed heterogeneous network resource problems. Distributing GMPLS
network control combining with grid resource co-allocated is proposed to illustrate the control and management in
distributed optical network. A test-bed implementing optical grid is built to show the allocation in unison between optical
network and application resources on distributed heterogeneous resource architecture.
On-demand reservation strategy is proposed for optical network resource scheduling. The proposed approach introduces
time window reservation on grid integrated with wavelength-routed optical network, according to the application request
with anticipant time range and rate. The time window deploys variable size, when time-window is not suitable for
current application requirement, the resource scheduler can negotiate the next time window allocation with the switch.
Time-window resource reservation approach loans dividing time multiplexing mechanism. Considering with multiple
parallel lightpaths' monopolization, the proposed reservation approach improves network resource request service rate
and makes the application having the QoS-aware ability.
During the past few years, gird technology has gained a rapid progress in E-Science, E-education, etc. All these typical
grid applications are involved with huge data transacting and collaborating that need a more capable network
infrastructure with sufficient bandwidth provisioning and high QOS guarantee other then the traditional Internet. Thus
gives birth to the concept of Grid-enabled Optical Network (Optical Grid), which mainly orients to the data-intensive
applications. In this paper, we give a vivid definition to Optical Grid, expound the most distinguished characteristics of it,
propose a novel SOA-based architecture for it, and then introduce a fast and flexible restoration mechanism, named DIR,
based on mature RSVP-TE for its control plane to support data-intensive grid applications, then make a deep analysis
and illustration on the proposed mechanism, finally draw a conclusion that the DIR mechanism can achieve much rapid
service recovery speed thus be very applicable for the distributed grid environment.
We present control plane architecture which is utilized to form a grid infrastructure enabled ASON and execute optical resource scheduling for grid community. ASON network is a good mode to solve the bandwidth deficient or unbalance problem in current grid service and implant large scale intelligent and automatic switching on optical layer, which make the communication resources evenly allocating and sharing in grid community for increasing resource utilizing efficiency. Grid services show the distributed and parallel attribution, which are being employed in many researching areas, such as parallel and distributed computing and processing. Thus, to construct a realizable and flexible ASON network infrastructure and support grid applications, the present control architecture will provide the parallel service, introducing automatic adjacent discovery and resource parallel reservation mechanism. At last, we test a grid file transfer by ASON mechanism in a test system by two parallel light paths for different file slices and validate the feasibility.
Optical grid provides scheduled optical network resource to grid application. For supporting intensive data in optical grid, LPoD service architecture is presented to implement multiple light paths scheduling on demand under the driven of applications. In the proposed architecture, we introduce load division for intensive data or huge size file to cut bulk data into fractions, which will be transferred by different light paths only if the original sending node owns multiple communication interfaces or using multi-wavelength paths. About the type of the applications that runs on optical grid with LPoD on load division, we illustrate the parallel and distributed computing, and compare the total expensing time under different processing ability and transmitting distances. The result shows that for remote collaborating job in optical grid, LPoD as communication resource providing method can satisfy grid demand. When there are many available nodes, selecting the nodes with nearer distance and strong processing will obtain good transmitting quality from executing time.
With the prevalence and development of IP applications based on Internet, traditional Internet Infrastructure can not address the demand of many high bandwidth and data-incentive applications. Grid technology is introduced to meet the demand of such applications, but bandwidth and transmission speed is still a serious problem. With the big growth in optical network technology, the trend becomes evident to integrate the grid technology and that of optical network, which
results in the research of next generation infrastructure for optical network: Photonic Grid. This article presents the key techniques and emphases of research in the new infrastructure and mainly talks about the infrastructure, the way of switching and routing, the scheme of control and management and middle ware. In the end, we give some appropriate advice in future research orientation of theory and techniques for Photonic Grid.
In this paper we present a resource scheduling mechanism for providing dynamic lightpaths to photonic grid network and point out that grid enabled by optical network has huge potential effect on pushing the next optical network applications. Furthermore we investigate photonic grid architecture and control plane based on peer-to-peer is also provided to control optical network communication resources dynamically. We also certificate the idea of extending BGP towards optical network, which is called Optical Border Gateway Protocol used to provide IP-based protocols to control optical network, and gives a dynamic lightpath scheduling approach over multi-wavelength optical network as a new grid service based