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Network Basics

On this page will network basics be explained. For more network basic knowledge not explained or showed on this page check Network Ports and Notes, Tips & Tricks: Cisco. This page is not finished yet.

OSI Model

Layer TypeData Unit Layer Function Example
Host Layer Data 7. Application Network process to application DNS, FTP, HTTP, NFS, NTP, SMTP, SNMP, Telnet
Host Layer Data 6. Presentation Data representation and encryption MIME
Host Layer Data 5. Session Interhost communication NetBIOS
Host Layer Segment 4. Transport End-to-end connections and reliability TCP, UDP, SSL, TLS
Media Layer Packet 3. Network Path determination and logical addressing IP, ICMP, IPsec, IPX, AppleTalk
Media Layer Frame 2. Data Link Physical addressing ARP, Ethernet, PPP
Media Layer Bit 1. Physical Media, signal and binary transmission T1, DSL, 802.11a/b/g/n PHY, Ethernet, USB, Bluetooth

TCP/IP Model

TCP Packet

IP Header


Sub and Supernetting

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networkbasics.txt · Last modified: 2013/08/16 21:24 by sjoerd