# OpenStack moving nodes in Network Topology

I am totally new in OpenStack. After launching the Stack in the dashboard, it shows a network topology in a project. There are two different ways to represent the network topology. In the tab GRAPH, the graph of network topology is dynamical. The nodes move randomly.

My question is why do the nodes move randomly, or the topology in GRAPH is dynamical? Is there some way to fix the nodes in a particular point or fixed point?

Thanks for your kind help:)