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OPENET: an open and efficient control platform for ATM networks

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7 Author(s)
Cidon, I. ; Dept. of Electr. Eng., Technion-Israel Inst. of Technol., Haifa, Israel ; Gupta, A. ; Hsiao, T. ; Khamisy, A.
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ATM networks are moving to a state where large production networks are deployed and require a universal, open and efficient ATM network control platform (NCP). The emerging PNNI (Private Network to Network Interface) standard introduces an internetworking architecture which can also be used as an intranetwork interface. However, PNNI fails in the latter due to performance limitations, limited functionality and the lack of open interfaces for functional extensions. OPENET is an open high-performance NCP based on performance and functional enhancements to PNNI. It addresses the issues of scalability, high performance and functionality. OPENET focuses on intranetworking and is fully compatible with PNNI in the internetwork environment. The major novelties of the OPENET architecture compared to PNNI is its focus on network control performance. A particular emphasis is given to the increase of the overall rate of connection handling, to the reduction of the call establishment latency and to the efficient utilization of the network resources. These performance enhancements are achieved by the use of a native ATM distribution tree for utilization updates, lightweight signalling and extensive use of caching and pre-calculation of routes. OPENET also extends PNNI functionality. It utilizes a new signalling paradigm that better supports fast reservation and multicast services, a control communication infrastructure which enables the development of augmented services such as directory, hand-off, billing, security etc. OPENET was implemented by the High-Speed Networking group at Sun Labs and is under operational tests

Published in:

INFOCOM '98. Seventeenth Annual Joint Conference of the IEEE Computer and Communications Societies. Proceedings. IEEE  (Volume:2 )

Date of Conference:

29 Mar-2 Apr 1998