Tesis doctoral de Pere Vila Talleda
Network management is a wide field including topics as diverse as fault restoration, network utilisation accounting, network elements configuration, security, performance monitoring, etc. This thesis focuses on resource management of broadband networks that have the mechanisms for performing resource reservation, such as asynchronous transfer mode (atm) or multi-protocol label switching (mpls). Logical networks can be established by using virtual paths (vp) in atm or label switched paths (lsp) in mpls, which we call generically logical paths (lp). The network users then use these lps, which can have pre-reserved resources, to establish their communications. Moreover, lps are very flexible and their characteristics can be dynamically changed. this work focuses, in particular, on the dynamic management of these logical paths in order to maximise the network performance by adapting the logical network to the offered connections. in this scenario, there are several mechanisms that can affect and modify certain features of the lps (bandwidth, route, etc.). They include load balancing mechanisms (bandwidth reallocation and re-routing) and fault restoration (utilisation of backup lps). These two mechanisms can modify the logical network and manage the resources (bandwidth) of the physical links. Therefore, due to possible interferences, there is a need to co-ordinate these mechanisms. Conventional resource management, using a logical network, performs a centralised recalculation of the whole logical network periodically (e.G. Every hour / day). This brings the problem that the logical network readjustments do not happen when a problem occurs. Moreover, there is a need of maintaining a centralised network overview. Management is becoming more difficult and complex due to increasing network sizes and speeds and new service requirements. Network administrators need more and more powerful applications to facilitate their decisions and, despite thei
Datos académicos de la tesis doctoral «Dynamic management and restoration of virtual paths in broadband networks based on distributed software agents«
- Título de la tesis: Dynamic management and restoration of virtual paths in broadband networks based on distributed software agents
- Autor: Pere Vila Talleda
- Universidad: Girona
- Fecha de lectura de la tesis: 07/05/2004
Dirección y tribunal
- Director de la tesis
- Marzo Lazaro Josep LLuis
- Tribunal
- Presidente del tribunal: jordi Domingo pascual
- john Bigham (vocal)
- boleslaw Szimanski (vocal)
- franco Davoli (vocal)