When the DTN was implemented in the early 80’s, it used the same routing as the HLN: this was the DTN Phase 1. Then I worked on studying, defining and specifying a new routing algorithm for the DTN, which was implemented as DTN Phase 3 Routing. Phase 3 routing brought performance improvements as well as an easier management of the routing tables. This is the story I am telling here.
https://wikisita.com/?get_group_doc=23/1488204066-RoutingintheSITANetwork-part2_f.pdf
About Jean-Michel Kaliszewski
I joined SITA Paris in June 1978 as an engineer in the Technical Studies department which was then managed by Georges Giraudbit. After developping planning tools for the HLN and later the DTN, I led the design and implementation of the new routing algorithm of the DTN. Later my team delivered the strategy and specification for migrating the network from airline specific protocols to open standards, and whichalso served for the RFP for the MTN. After working on developing projects for non-airline customers, I moved to SITA Geneva in 1999, in marketing and later fiance departments. In 2004 i left SITA to join IATA in Geneva. With IATA I first worked on launching and developing a new business based on providing credit card payment services to travel agencies. Then I moved to IT, in charge of all data management for successfully.implementing SAP at IATA. Once that project was over I joined the Cargo department at IATA, in charge of Technical developments. Having worked both at SITA and IATA has been a very unique experience for me!
