GMNF-DVMRP: an enhanced version of distance vector multicast routing protocol

In this paper we propose an enhancement to the Distance Vector Multicast Routing Protocol (DVMRP), called ‘Group Membership Near First DVMRP’ (GMNF-DVMRP), to decrease the network cost (NC) of the multicast tree formed by DVMRP. A simulation is implemented to compare our enhanced version and the original DVMRP. We find that our method saves about 5%–7% of NC of the multicast tree formed by DVMRP. 1998 John Wiley & Sons, Ltd.