Résumé:
Asynchronous Transfer Mode (ATM) is a highspeed network technology that transmits various types of
information across networks such as voice, video, image,
data, etc. In an ATM network the basic data units, called
cells, are routed through switched or permanent virtual
circuits (virtual channels). A Smart Permanent Virtual
Circuit is a connection that looks like a Permanent
Virtual Circuit at the local and remote endpoints with a
Switched Virtual Circuit in the middle. If a link carrying
a Smart Permanent Virtual Circuit goes down and there is
an alternate route, then the network automatically
reroutes the Smart Permanent Virtual Circuit around the
link. As a result of the rerouting, the network may not be
able to deliver the guaranteed quality of services as it was
negotiated. It may have to change the quality of service
parameters negotiated for other connections. The
objective of this paper is to apply Distributed Artificial
Intelligence (DAI) methodologies, “intelligent” agents”,
in ATM networks management. The paper presents a
search algorithm that helps the agents learn fiom
previous interactions and experience. Agents can
evaluate altemate paths in order to maintain as many
connections as possible with the quality of service
guaranteed originally.
