Fault tolerance in the Server and Agent Based Network Management (SAAM) system
Wright, Troy V.
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Interconnected networks of computers are becoming increasingly important. It is the Internet that has spurred the most recent growth in global computer networks. The limitations of the Internet can be blamed on many factors but when determining solutions to these shortcomings the focus has been on replacing the current Internet Protocol version 4 (IPv4) with the new Internet Protocol version 6 (IPv6). Much work has been done and much more work remains to be done in transitioning to and reaping the benefits of this Î²Next Generation Internet.Î³ The Server and Agent Based Active Network Management (SAAM) project is one of many Î²Next Generation InternetÎ³ projects that intend to implement and exploit the enhanced capabilities of IPv6 to overcome the limitations of the current Internet. The focus of the SAAM project is guaranteed quality of service (QoS). This thesis addresses fault tolerance in a SAAM region with regards to router and link failures. A hybrid link restoration (rerouting) scheme is proposed, in which central knowledge (at the SAAM server) of the network topology is used to develop alternate paths while path switching is done at a local (router) level.
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