M s Windows NetBIOS Protocol Stack NetBIOs OSI Reference NetBIOs is a session-layer protocol used for File sharing Presenta Printer sharing Session Data Link Physical 喻大人计挥机学多堂龙 Windows Network Transport Mechanisms NetBEUI Protocol Stack NetBIOS can be transported by NetBEUI NetBIOS over TCP/IP-NBT g not Scssion Application Transpe traffic must be NetBEUI TCPMP interface card NetBIOS over IPX--NWLink NetBIOS over TCP/IP--NBT Technical requirements Recommended for small- to medium-size networks Recommended for medium-size to large-scale networks leeded for networks that include a wan link Carried as IPX type-20 packets Depends on an IP address assignment policy Data Lin Physic9 哈工大计算机学院 李全龙 Network Application Development 1: Introduction M.S Windows NetBIOS Protocol Stack Application Transport Session Network Data Link Physical Presentation Redirector Server Message Block (SMB) NetBIOS Network interface card 1 7 6 2 3 4 5 NetBIOS OSI Reference 哈工大计算机学院 李全龙 Network Application Development 1: Introduction NetBIOS 7 • NetBIOS is a session—layer protocol used for • File sharing • Printer sharing • Messaging • Authentication • Name resolution Name Query - Broadcast Where is File_Server? Name Query - Broadcast Where is Print_Server? Print_ Server File_ Server 哈工大计算机学院 李全龙 Network Application Development 1: Introduction Windows Network Transport Mechanisms • NetBIOS can be transported by • NetBEUI • NetBIOS over IPX—NWLink • NetBIOS over TCP/IP—NBT NetBIOS NetBEUI IPX TCP/IP 哈工大计算机学院 李全龙 Network Application Development 1: Introduction NetBEUI Protocol Stack • Network-layer addressing not included • Application traffic must be bridged Application Transport Session Network Data Link Physical Presentation Redirector Server Message Block (SMB) NetBIOS Network interface card 1 7 6 2 3 4 5 NetBEUI OSI Reference NetBEUI 哈工大计算机学院 李全龙 Network Application Development 1: Introduction NetBIOS over IPX—NWLink • Technical requirements • Recommended for small- to medium-size networks • Needs IPX to be operational already • Carried as IPX type-20 packets Application Data Link NetBIOS Physical IPX 哈工大计算机学院 李全龙 Network Application Development 1: Introduction NetBIOS over TCP/IP—NBT • Technical requirements • Recommended for medium-size to large-scale networks • Needed for networks that include a WAN link • Depends on an IP address assignment policy Application Data Link NetBIOS Physical TCP IP