There is no denying the underlining interest for enterprise Voice IP networks as businesses continuously seek to competitively position their company. The list of glittering arguments facing Information Systems (IS) m...
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There is no denying the underlining interest for enterprise Voice IP networks as businesses continuously seek to competitively position their company. The list of glittering arguments facing Information Systems (IS) managers is long;single-common voice-data communications infra-structure, simplified moves and changes, common network management tools, and new carrier services and network connectivity. How can we meet the promises of improved performance, more efficient organizations, lower Total Cost of Ownership (TCO) and better Return On Investment (ROI)? How are the issues of quality, security, robustness, and inter-working really solved? How does an enterprise optimize and leverage it's existing investments and make an optimal transition to the promised benefits of IP networks, at the lowest cost and minimum risk?
The introduction of new communication systems based on Internet Protocol (IP) architectures is fuelled by enterprises seeking to rationalize their business processes. Alcatel provide the components for the open commun...
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The introduction of new communication systems based on Internet Protocol (IP) architectures is fuelled by enterprises seeking to rationalize their business processes. Alcatel provide the components for the open communication suite and open network foundation. Convergence can be achieved pragmatically by deploying viable solutions that propel businesses into eBusiness communications.
Provision of end-to-end QoS guarantees on communication necessitates appropriate support in the end systems (i.e., hosts) and network routers that form the communication fabric. The paper focuses on the architectural ...
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Provision of end-to-end QoS guarantees on communication necessitates appropriate support in the end systems (i.e., hosts) and network routers that form the communication fabric. The paper focuses on the architectural and implementation challenges involved in realizing QoS sensitive host communication subsystems on contemporary microkernel operating systems with limited real time support. We motivate and describe the components constituting our integrated service architecture that together ensure QoS sensitive handling of network traffic at both sending and receiving hosts and demonstrate a communication framework that can implement alternative QoS models by applying appropriate policies. An experimental evaluation in a controlled configuration demonstrates the efficacy with which QoS guarantees are maintained despite limitations imposed by the underlying operating system.
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