Basic Networking: Difference between revisions
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Related services/protocols: DHCP, DNS, ARP, ICMP | Related services/protocols: DHCP, DNS, ARP, ICMP | ||
Layer 4: Transport | |||
TCP vs. UDP | |||
Ports, sockets | |||
NAT and port forwarding | |||
Common port numbers for protocols | |||
Application Layer: | |||
Common protocols, FTP, HTTP, SSH, HTTPS, POP3, SMTP, IMAP4, etc. | |||
Revision as of 16:45, 15 March 2013
Basic Networking Concepts
- OSI and TCP/IP Models
- Layers
- Protocols - Ethernet, TCP/IP stack, application protocols
- Data Encapsulation - Protocol data units, headers and footers.
Layer 1: Physical
Cabling
- UTP Cable - 100m range, TIA/EIA568a and b pinouts, EMI, plenum vs. regular PVC
- Fiber Optic
- Installation and Troubleshooting - crimping, patch panels, cable testing tools
Layer 1 Devices
- Repeaters
- Hubs
Layer 2: Data Link
Ethernet Protocol - MAC addresses, LLC and MAC sublayers, ethernet frame structure
Layer 2 Devices
- Bridge
- Switch
Layer 3: IP
IPv4 - IP address structure, classless vs. classful
IPv6
IPv4 Subnetting
Routing basics
Related services/protocols: DHCP, DNS, ARP, ICMP
Layer 4: Transport
TCP vs. UDP
Ports, sockets
NAT and port forwarding
Common port numbers for protocols
Application Layer:
Common protocols, FTP, HTTP, SSH, HTTPS, POP3, SMTP, IMAP4, etc.