Labels:text | screenshot | diagram | parallel | line | font | number OCR: DYMARP SPANNING TREE Constructing a DVMRP Spanning Tree Moltibäst, #soup Mocidest proup Resulting OVMRP. Spanning Tree members. MURicast MAS Musicest member Multcast group meinbers. Figure 1. Distance Vector Multicast Routing Protocol has been widely used on the MBone ( Multicast Backbone). This midricast routing protocol seletivay forwards multicast packets so only routers with multicast group members receive transmissions, Hereby efficiently using available bandwidth. Because membership in n mudricast group is dynamic, DVMRP occasionally reconstructs the tree.