00633nas a2200097 4500000000100000008004100001100002200042245008300064300001200147520037600159 2012 d1 aKrzysztof Grochla00aSimulation analysis of a virtualization system performance in Boot Up Scenario a21–243 aThe simultaneous boot of multiple virtual machines or networking devices imposes heavy load on the networking infrastructure. In large network of many virtual machines the coordination of the reboots and device registration is required. In the paper few distributed mechanisms for coordination of virtual machine or network device registration are analyzed by simulation.