Many-to-Many Multicast Routing Schemes under a Fixed Topology
Figure 1
Ignore the dashed lines on the left top subfigure to obtain a sample graph where the number on each edge represents its length. The right top subfigure is a sample rooted TeST and the right bottom is a sample unrooted TeST. An example centralized many-to-many multicast tree under a fixed topology is distinguished by dashed lines on the left top subfigure and an example decentralized one is distinguished on the left bottom subfigure.
