Open Signaling for ATM Networks: A Vexed Question of Performance

Authors:
T. Andrew Au
Affiliations:
Defense Science and Technology Organization, DSTO C3 Research Center, Fernhill Park, Department of Defense, Canberra, ACT 2600, Australia. andrew.au@dsto.defence.gov.au
Venue:
Journal of Network and Systems Management
Year:
2001

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Abstract

Based on a clear separation between switching hardware and control software, the concept of open signaling creates an open programmable networking environment in which network entities can be realized as high level software objects with well-defined interfaces. This underlying architecture facilitates the creation of multiple mechanisms of network control, supporting applications for connection management. The feasibility of a connection management framework however depends mainly on the performance of CORBA because of binding overheads associated with remote invocations. It has been proposed that an implementation with reasonable performance may require certain criteria to be integrated into the design, including caching of network states, aggregation of access to the switch server object, and parallel processing of a single call request. This paper considers the effectiveness of these design criteria and the associated performance issues of a connection management system for ATM networks.