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Recently, high-speed powerline communication gets great attention as the home network backbone for multimedia services because of the low cost and QoS support. Since a home network is mixed with various types of networks, the high-speed powerline communication is often connected with non-QoS networks such as Ethernet. Then it is very difficult to provide end-to-end QoS for multimedia services in the home network environments since traffics are often transported to Ethernet. In this paper we deal with some QoS issues at the bridge for multimedia service when it connects high-speed powerline communication and Ethernet. Also, we introduce a QoS support Ethernet/high-speed powerline communication bridge system and shows some experimental results in this paper.