Wireless links are loss due to interference and fading channel. Because of this loss, Previously send duplicate packets to enhance the transmission. But the bandwidth consumption is more in the previous routing method. Bandwidth is more important in the communication. In this paper, a multicast routing protocol that constructs multiple multicast trees and network coding satisfies the predefined protocol. The proposed protocol can reduce the bandwidth guarantee. Estimating the available bandwidth by variable bit rate (VBR).These improves the bandwidth availability in the network