Networking. Networking and Communication Trends Convergence (Accessibility) Speed Stability Simplicity* Embeddedness

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Transcription:

Networking and Communication Trends Convergence (Accessibility) Speed Stability Simplicity* Embeddedness

What is a Computer Network General definition Related hardware Network Interface Card Network Operating System

What is a Computer Network General definition Related hardware Network Interface Card Hub Switch Router Network Operating System

What is a Computer Network General definition Related hardware Network Interface Card Hub Network Operating System

What is a Computer Network General definition Related hardware Network Interface Card Hub Switch Network Operating System

What is a Computer Network General definition Related hardware Network Interface Card Hub Switch Router Network Operating System

Key Networking Technologies Client / Server Computing Packet switching TCP / IP Has 7 layers Each layer provides a unique service or function

Key Networking Technologies TCP / IP Application Presentation Session Transport Network Data Link Physical

MAC IP TCP / UDP Format / Use protocols

Network Packet Structure Layer 2 Data Link Layer Check MAC address Layer 3 Network Layer Check IP address Layer 4 Transport TCP / UDP Layer 5-7 Format / Use / Nav

Physical Transmission Media Twisted wire (twisted pair) Analog signal Digital signal MODEM

Physical Transmission Media Twisted wire (twisted pair) Analog signal Digital signal MODEM

Physical Transmission Media Twisted wire (twisted pair) Analog signal Digital signal MODEM Coaxial cable

Physical Transmission Media Fiber optics and optical media Fiber optic cable Backbone Optical networks

Physical Transmission Media Fiber optics and optical media Fiber optic cable Backbone Optical networks Wireless transmission Microwave systems Satellites Cell towers

Physical Transmission Media Fiber optics and optical media Fiber optic cable Backbone Optical networks Wireless transmission Microwave systems Satellites Cell towers

Physical Transmission Media Transmission speeds BPS / Baud Hertz Bandwidth

Types of Networks LAN WAN Peer to Peer (P2P) Topologies Hierarchical

Types of Networks LAN WAN Peer to Peer (P2P) Topologies Hierarchical Star

Types of Networks LAN WAN Peer to Peer (P2P) Topologies Hierarchical Star Ring

Types of Networks LAN WAN Peer to Peer (P2P) Topologies Hierarchical Star Ring Bus

Types of Networks LAN WAN Peer to Peer (P2P) Topologies Hierarchical Star Ring Bus Mesh

Internet Addressing and Architecture Uses the TCP / IP Internet Protocol address IPv4 131.216.144.22 IPv6 2002:83D8:9016:0:0:0:0:0 Types of IP address Static Dynamic (Requires DHCP)

Internet Addressing and Architecture 340,282,366,920,938,000,000,000,000,000,000,000,000

Internet Addressing and Architecture Uses the TCP / IP Internet Protocol address IPv4 131.216.144.22 IPv6 2002:83D8:9016:0:0:0:0:0 Types of IP address Static Dynamic (Requires DHCP)

IP Addresses DORA for DHCP Discover Offer Request Acknowledge

IP Classes Class A Leading bit: 0 1.0.0.0 to 126.0.0.0 8 bits for network ID Class B Leading bits: 10 128.0.0.0 191.255.255.0 16 bits for network ID Class C Leading bits: 110 192.0.0.0 223.255.255.0

IP Addresses Reserved IP numbers within max range 0.0.0.0 255.255.255.255 127.0.0.1 169.254.0.1 to 169.254.255.254

Domain Name System (DNS) English-ish name, usually Domain extensions Reading addresses DNS Servers

Internet Addressing and Architecture Internet architecture and governance Internet Architecture Board Internet Corporation for Assigned Names and Numbers World Wide Web Consortium

Internet Services Email Newsgroups LISTSERVs Instant / video / Text messaging Telnet File Transfer Protocol IoT

IoT Protocols Bluetooth ZigBee NFC MQTT LowPAN XMPP

Some notes on web pages and languages Hypertext HTML HTTP URL DOI Digital Object Identifier

Wireless Networks and Internet Access Bluetooth / Personal Area Networks Wi - Fi Infrastructure Mode Access Points Ad-Hoc Mode Wireless NICs Hotspots Wi-Max Radio Frequency

One more thing: The Cloud What is it? Where is it? Who owns it? What happens if? Networking

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