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RAS in VoIP Networks
KTH, Superseded Departments, Teleinformatics. (CCSlab)
1999 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Traditionally network access servers are used to provide access services for remote dial-up users who want to access packet switched networks. The users can dial-up over public switched telephone network connection when they want to access the Internet or a Corporate LAN. The construction of new telephony networks based on IP-technology gives the possibility to integrate new services in these networks. Such a new service could be a remote access service integrated in the Media Gateways used for IP-telephony. The main goal with this Master Thesis project is to evaluate possible architectures for integrating distributed remote access service in Voice over IP networks.

The conclusion of my evaluation is that the best way to integrate the dial-up network access service in VoIP networks is the L2TP solution. Traditionally a PPP session is established between the dial-up user and the network access server over a PSTN/ISDN connection. In the L2TP solution a Media Gateway terminates the physical and data link layer and use the L2TP protocol to tunnel the PPP session to a network access server over the IP network. The PPP session is terminated on the network access server.

Another interesting solution is the PPP solution where the Media Gateway and a router handle all the dial-up network access features that a traditional network access server normally provides. The PPP session is terminated directly on the Media Gateway and the traffic is forwarded out on the external network by the router. In this solution the network access server is no longer needed.

Place, publisher, year, edition, pages
1999. , 61 p.
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-94950OAI: oai:DiVA.org:kth-94950DiVA: diva2:526415
Educational program
Master of Science in Engineering - Electrical Engineering
Presentation
1999-10-28, Seminar room "Telegrafen", Isafjordsgatan 22, Kista, 08:00 (English)
Uppsok
Technology
Supervisors
Examiners
Available from: 2012-06-20 Created: 2012-05-11 Last updated: 2013-09-09Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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More styles
Language
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Output format
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  • asciidoc
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