隨著網(wǎng)絡(luò)規(guī)模的迅速擴大，用戶對專用網(wǎng)絡(luò)的需求越來越大，虛擬專用網(wǎng)為用戶提供一個安全和低費用的環(huán)境，但其服務(wù)質(zhì)量(QoS)是一個非常重要的因素。首先對VPN 中的QoS 問題及其研究現(xiàn)狀進行了綜述，然后著重分析了InterServ和DiffServ 兩種模型的QoS實現(xiàn)框架研究,并進行了比較分析；其次對基于MPLS技術(shù)的VPN QoS進行了分析。
關(guān)鍵詞: 虛擬專用網(wǎng)；QoS；InterServ 模型；DiffServ 模型；MPLS
Abstract: With the rapid enlarging of network , The requirement of private network is ever-enlarging, Virtual Private Network provides an environment of security and low cost, but the Quality of Service (QoS) is a very important factor. First give a detail narration for the question of VPN QoS and research state, then analyses the implement of QoS frame research with InterServ and DiffServ model, also analyses the VPN QoS with MPLS.
Keywords: VPN; QoS; InterServ Model; DiffServ Model; MPLS