Abstract: This invention relates to handling of different service versions in a server that is connected to a communication network. The invention comprises means to load a desired version, two tables and additional data for handling different service versions. The first table contains service key and version information, and serialized service objects. The second table contains names of classes, version information and class files. The additional data is needed for loading the right class from among classes, with the same name, and mapping the right service object version to the right versions of classes.

Abstract: A communication system includes a first node, a second node and, at least one intermediate node between said first and second nodes. The first and second nodes are arranged to be in communication. The first and second nodes have a first security association and one of the intermediate nodes and the second node have a second security association. The first security association authenticates the second node to the first node and the second security association authenticates the at least one intermediate node to the second node.

Abstract: The present invention concerns a method and a system for stateless load sharing for a server cluster in an IP based telecommunications network, comprising an IP based telecommunications network, a server cluster comprising server nodes for running an application process, and a load balancer for receiving packets and forwarding them to various server nodes. According to the invention the load balancer further comprises a distribution key obtainer for identifying and extracting at least one predetermined field from each dispatched packet or PDU contained within to be used as a distribution key, a hasher for hashing each distribution key to obtain an offset value for each packet, and a resolver for resolving a packet specific destination address for each packet using the obtained offset values.

Abstract: This invention relates to handling of different service versions in a server that is connected to a communication network. The invention comprises means to load a desired version, two tables and additional data for handling different service versions. The first table contains service key and version information, and serialized service objects. The second table contains names of classes, version information and class files. The additional data is needed for loading the right class from among classes, with the same name, and mapping the right service object version to the right versions of classes.