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A Provider Edge router (PE router) is a router between one network service provider's area and areas administered by other network providers. A network provider is usually an Internet service provider as well (or only that). The term ''PE router'' covers equipment capable of a broad range of routing protocols, notably: *Border Gateway Protocol (BGP) (PE to PE or PE to CE communication) *Open Shortest Path First (OSPF) (PE to CE Router communication) *Multiprotocol Label Switching (MPLS) (PE to P Router communication) PE routers do not need to be aware of what kind of traffic is coming from the provider's network, as opposed to a P Router that functions as a transit within the service provider's network. However, some PE routers also do labelling. ==See also== * CE Router * P Router 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「provider edge」の詳細全文を読む スポンサード リンク
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