Policy based network management of legacy network elements in next generation networks for voice services

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dc.contributor.advisorTucker, William
dc.contributor.authorNaidoo, Vaughn
dc.contributor.otherDept. of Computer Science
dc.date.accessioned2014-03-11T13:38:52Z
dc.date.accessioned2024-10-30T14:00:50Z
dc.date.available2013/06/07
dc.date.available2013/06/07 10:59
dc.date.available2014-03-11T13:38:52Z
dc.date.available2024-10-30T14:00:50Z
dc.date.issued2002
dc.descriptionMagister Scientiae - MScen_US
dc.description.abstractTelecommunication companies, service providers and large companies are now adapting converged multi-service Next Generation Networks (NGNs). Network management is shifting from managing Network Elements (NE) to managing services. This paradigm shift coincides with the rapid development of Quality of Service (QoS) protocols for IP networks. NEs and services are managed with Policy Based Network Management (PBNM) which is most concerned with managing services that require QoS using the Common Open Policy Service (COPS) Protocol. These services include Voice over IP (VoIP), video conferencing and video streaming. It follows that legacy NEs without support for QoS need to be replaced and/or excluded from the network. However, since most of these services run over IP, and legacy NEs easily supports IP, it may be unnecessary to throw away legacy NEs if it can be made to fit within a PBNM approach. Our approach enables an existing PBNM system to include legacy NEs in its management paradigm. The Proxy-Policy Enforcement Point (P-PEP) and Queuing Policy Enforcement Point (Q-PEP) can enforce some degree of traffic shaping on a gateway to the legacy portion of the network. The P-PEP utilises firewall techniques using the common legacy and contemporary NE management protocol Simple Network Management Protocol (SNMP) while the Q-PEP uses queuing techniques in the form Class Based Queuing (CBQ) and Random Early Discard (RED) for traffic control.en_US
dc.description.countrySouth Africa
dc.identifier.urihttps://hdl.handle.net/10566/16965
dc.language.isoenen_US
dc.publisherUniversity of the Western Capeen_US
dc.rights.holderCopyright: University of the Western Capeen_US
dc.subjectCommon open policy serviceen_US
dc.subjectInternet protocolen_US
dc.subjectLegacyen_US
dc.subjectNetwork elementen_US
dc.subjectNext generation networken_US
dc.subjectPolicy based network managementen_US
dc.subjectQuality of serviceen_US
dc.subjectSimple network management protocolen_US
dc.subjectVoice over internet protocolen_US
dc.titlePolicy based network management of legacy network elements in next generation networks for voice servicesen_US

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