This paper discusses on quality of service (QoS) guarantee in P2P network, and

proposes a simple QoS architecture. In section 1, main characteristic of P2P network

and the importance of Qos in P2P network are viewed. In section 2, QoS requirements

of different services in P2P network are deeply discussed. In section 3, some

important techniques using for guarantee QoS of different services, such as File

Sharing, VoIP and IPTV are analyzed. In section 4, a simple generic QoS architecture

based on P2P is proposed.-This paper discusses on quality of service (QoS) guarantee in P2P network, and proposes a simple QoS architecture. In section 1, main characteristic of P2P network and the importance of Qos in P2P network are viewed. In section 2, QoS requirements of different services in P2P network are deeply discussed. In section 3, some important techniques using for guarantee QoS of different services, such as File Sharing, VoIP and IPTV are analyzed. In section 4, a simple generic QoS architecture based on P2P is proposed.