Data Communication Networking Masterclass:TCP/IP, OSI & More

Explore network models, focusing on the OSI model layers and the TCP/IP protocol, including addressing and the TCP versus UDP comparison.

Learn the 13 layer tasks of data communication, focusing on the first six: transmission system utilization, interface, signal generation, synchronization, exchange management, and error detection and correction, including multiplexing.

Master how flow control aligns sender and receiver rates, and how routing and recovery ensure reliable delivery. Explore addressing, message formatting, security measures, and network management for secure data communication.

Explore the seven OSI model layers from application to physical, including host versus media roles and how data units like D7, packets, frames, and symbols flow across the network.

Explore the OSI model part two by examining the transport, network, data link, and physical layers, highlighting reliable process-to-process delivery, TCP vs UDP, IP addressing, routing, and frame-level concepts.

Discover the TCP/IP protocol suite, its four-layer model, and OSI comparison, learning application, transport, internet, and network access layers with protocols like HTTP, DNS, TCP, and IP.

Explore TCP/IP addressing techniques, comparing IPv4 32-bit addresses and the five classes with leading bits, net IDs and host IDs, to IPv6 128-bit hex addresses and multicast concepts.

Explore tcp vs udp in the tcp/ip suite: tcp is a connection-oriented, reliable protocol with sequencing, error checking, and acknowledgments, while udp is a connectionless protocol with no guarantees.

Explore the physical layer concepts, data-to-signal conversion, and signal classifications, then examine transmission impairments, noise, data rate limits, and overall system performance.

Explore the data, information, knowledge, wisdom (DIKW) pyramid, distinguish analog and digital data, and learn about information content, information sources, and measures of information.

Explore what signals are, distinguish analog and digital types, and compare continuous time versus discrete time signals, including carrier-based modulation concepts.

Learn to classify signals into periodic, aperiodic, deterministic, and random, identify periodicity and how a signal repeats, and review examples and criteria including fundamental and angular frequency.

Explore energy signals and power signals, distinguishing finite energy with zero power from finite power with infinite energy, and identify a ramp signal as neither.

Explore transmission impairments in data communication, including attenuation, distortion, and additive noise, and learn how thermal Johnson noise, shot noise, 1/f and white noise, plus path delays, affect signal integrity.

Explore data rate factors, bandwidth, and noise, and apply the Shannon–Hartley law to understand channel capacity and data rate limits.

Analyze how network performance hinges on parameters like device count, bandwidth (system vs signal), and latency, comparing coaxial, fiber, twisted pair, and wifi capabilities from 1 gbps to 40 tbps.

Explore data link control design, framing, and flow and error control for noiseless and noisy channels, including hdlc and arq protocols.

Explore the point-to-point protocol, its framing structure, link establishment, authentication options like PAP and CHAP, and multilink support, with notes on IP/OSI control and frame check sequencing.

Master media access control concepts and random access protocols, including Aloha, slotted Aloha, CSMA, CSMA/CD, and CSMA/CA, with channel sensing, backoff, interframe space, and acknowledgments to manage multi-user links.

Explore control access techniques including reservation, polling (select and poll), and token passing, with insights on frames, primary/secondary roles, and ring types (physical, dual, bus, star).

Explore channelization techniques in data communication networking masterclass, including FDM, TDMA, and CDMA, and how guard bands, spread spectrum, and coding enable interference-free, shared channel access.

Explore the network layer’s role in packet transmission, including logical addressing with IP, next generation IP, and the Internet Protocol, plus mapping between logical and physical addresses.

Learn IPv4 addressing fundamentals, including dotted decimal and binary notations, classful and classless schemes, subnetting, supernetting, CIDR notation, and NAT address ranges.

Explore IPv6 addressing, including 128-bit space and hexadecimal notation. Understand unicast, multicast, anycast, local address types such as link-local and site-local, and reserved addresses.

Explore how the internet protocol enables internetworking, detailing IPv4 and IPv6 headers, IP packets, routing, and the network layer across routers and hosts.

Learn how logical to physical address mapping works, including ARP requests and replies. Explore static and dynamic mappings, cache use, and proxy ARP.

Learn how to map physical to logical addresses using arp, bootp, and dhcp, and examine arp broadcast limits and how bootp relays and dhcp enable dynamic addressing.

Explore the network layer concepts in part two of the internet model. Understand router functions, packet delivery, and unicast, inter-domain, and multicast routing, including distance-vector, link-state, and path-vector algorithms.

Explore how a router delivers and forwards packets, comparing direct and indirect delivery, and examining forwarding methods such as next-hop, route, host-specific, network-specific, and default routing.

Learn how routers forward data with simplified forwarding, longest mask matching, and address aggregation. Discover routing tables, static and dynamic, and how hierarchical and geographical routing reduce table sizes.

Explore unicast routing algorithms and the role of static versus dynamic routing, detailing routing protocols, optimization metrics such as cost, hop count, throughput, and delay for intra-domain and inter-domain routing.

Explore multicast routing algorithms, distinguishing unicast, broadcast, and one-to-many delivery, and learn source-based and group-based shortest path trees with protocols like PIM, MSF, DVMRP, and CBT.

Explore inter-domain routing concepts, comparing distance vector and link state protocols, understanding autonomous systems, routing tables, flooding of link state packets, and the shortest path tree using Dijkstra.

Explore inter-domain routing protocols, comparing RIP and OSPF, with emphasis on distance-vector versus link-state methods, hop counts, and backbone area concepts in an autonomous system.

Explore inter-domain routing with path vector protocols and learn how border gateway protocol enables autonomous systems to exchange routes, prevent loops, and distinguish internal from external sessions.

Explore how the transport layer enables process-to-process data delivery by examining UDP and TCP, their operation, frame structure, flow control, error control, queuing, congestion control, and checksum.

Explore transport layer services and process-to-process data delivery, including connectionless and connection-oriented options. Compare reliable and unreliable transfer with flow and error control, and examine port numbers, sockets, and multiplexing.

Explore the connectionless transport layer with UDP, highlighting its simplicity and low overhead, and examine UDP ports, the UDP packet format, and the absence of sequencing or flow control.

Discover UDP's principle of operation as a connectionless, datagram-based transport with no sequencing or flow control, using a checksum and a pseudo header, UDP header, and port numbers.

Explore UDP encapsulation and decapsulation within the IP datagram, understand UDP queuing, ports, ICMP destination unreachable responses, and uses such as simple request‑response and multicast.

Learn how the connection oriented tcp/ip protocol enables reliable, ordered data transfer through path setup, data transfer, and path termination, including ports and the tcp/ip packet structure.

Explore how tcp creates a virtual client–server connection, performs three-way handshaking, transfers data with sequence and acknowledgement numbers, and applies flow, error, and congestion control.

Explore TCP flow control with the sliding window using rwnd and cwnd, error control with 16-bit checksum and acknowledgments, and open and closed loop congestion policies.

Explains TCP flow control with the sliding window in the transport layer, showing how the receiver controls open, close, and shrink window, rwnd, and congestion window.

Explore tcp error control mechanisms, including checksum, acknowledgement, retransmission, timeout, and handling of out-of-order segments and three duplicate acks.

Explore the application layer and its network applications through socket programming. Study http, ftp, smtp, mime, dns, and the basics of web, email, and file transfer protocols.

Explore the application layer and its socket interface to the transport layer. Examine client-server and P2P architectures, application layer protocols like SMTP, HTTP, FTP, and the TCP/UDP transport services.

Explore the world wide web, http architecture, and the web's document types—from static to dynamic to active—along with http transactions, headers, cookies, and proxy server roles.

Explore remote logging via telnet and how ftp uses separate control and data connections to transfer files. Understand ftp concepts like anonymous ftp, file types, and network virtual terminal.

Explore the architecture of electronic mail, including smtp and mime, and learn how user agents, mtas, and push-pull delivery enable web-based mail across four scenarios.

Discover how the Domain Name System maps domain names to IP addresses, organizes a hierarchical name space, and supports recursive, iterative, and cached resolutions.

Learn socket programming for client-server applications, covering socket concepts, four socket types, and key calls (bind, listen, accept, connect, send, receive, close) with TCP and UDP echo examples.