Move-with-the-sun or move-with-the-moon?

This paper presents the architecture of our wide-area CloudNet migration demonstrator which supports two types of migrations: (1) A latency critical virtual video streaming service migrates according to the current user locations and access patterns ("move-with-the-sun"), e.g., to improve Quality-of-Service (QoS) parameters. (2) Latency uncritical CloudNets-virtual networks connecting cloud resources-are re-embedded at different locations in the substrate network, e.g., to make resources available for the latency critical applications ("move-with-the-moon").