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Computer Networks Diagrams of all 6 units
Unit I
Topology
Bus Topology
Ring Topology
Star Topology
Computer Networks Diagrams of all 6 units
Mesh Topology
Tree Topology
Hybrid Topology
Computer Networks Diagrams of all 6 units
OSI Model
TCP/IP Model
Computer Networks Diagrams of all 6 units
Transmission Media
Single and Multimode Fiber
Spread Spectrum
Computer Networks Diagrams of all 6 units
FHSS(Frequency Hopping Spread Spectrum)
DSSS (Direct Sequencing Spread Spectrum)
Computer Networks Diagrams of all 6 units
Unit II
Framing Methods:
Character Count
Flag bytes with byte stuffing
Flag bits with bit stuffing
Computer Networks Diagrams of all 6 units
Flow Control in DLL
Go-Back-N
Selective Repeat
HDFC Protocol
Normal Response Mode
Computer Networks Diagrams of all 6 units
Asynchronous balanced mode
HDFC Frames
Control field format for the different frame types of HDLC
Computer Networks Diagrams of all 6 units
PPP (Point to Point Protocol)
PPP frame format
PPP Phase Transition Diagram
Computer Networks Diagrams of all 6 units
Unit III
PURE ALOHA
Frames in PURE ALOHA
PURE ALOHA FLOW CHART
Computer Networks Diagrams of all 6 units
Slotted Aloha
CSMA Methods
Computer Networks Diagrams of all 6 units
CSMA with Collision Detection
CSMA with Collision Detection (Flow Chart)
Computer Networks Diagrams of all 6 units
CSMA/CA
CSMA/CA (Flow Chart)
Computer Networks Diagrams of all 6 units
Wavelength Division Multiple Access Protocols
Frame formats. (a) Ethernet (DIX). (b) IEEE 802.3.
Binary Exponential Back -off algorithm,
Computer Networks Diagrams of all 6 units
The 802.11 MAC Sublayer Protocol
802.11 Frame Structure
Computer Networks Diagrams of all 6 units802.15 Bluetooth Architecture
Bluetooth Protocol Stack
Bluetooth Frame Format
802.16 Wi-Max Frame Format
Computer Networks Diagrams of all 6 units
Unit IV
Circuit Switching
Message Switching
Packet (Datagram) Switching
Computer Networks Diagrams of all 6 unitsPacket (Virtual Circuit approach) Switching
IPV4 Header
Computer Networks Diagrams of all 6 unitsIPV4 Address Format and Ranges
IPV6 Header
Computer Networks Diagrams of all 6 unitsNetwork Address Translation (NAT)
ICMP (Internet Control Message Protocol) Header
Types of Routing Protocol
Computer Networks Diagrams of all 6 unitsDistance Vector Routing Protocol (Initialization Phase)
Distance Vector Routing Protocol (After sharing and updation Phase)
Distance Vector Routing Problem (Count to Infinity)
Computer Networks Diagrams of all 6 unitsRIP (Routing Information Protocol) Header Format
Link State Routing (LSR)
OSPF (Open Shortest Path First) Area Diagram
Computer Networks Diagrams of all 6 unitsOSPF Header
BGP (Border Gateway Protocol) Working Example
BGP Header Format
Computer Networks Diagrams of all 6 unitsARP & RARP
ARP (Address Resolution Protocol) Header
RARP (Reverse Address Resolution Protocol)
MPLS (Multiprotocol Label Switching) Header Format
Computer Networks Diagrams of all 6 units
MPLS Working Diagram
Mobile IP
Computer Networks Diagrams of all 6 units
Unit V
TCP Header Format
TCP Connection establishment using three-way handshaking
TCP Connection Establishment Scenario (3)
Computer Networks Diagrams of all 6 units
Three protocol scenarios for establishing a connection using a three-way handshake. (a) Normal operation, (b) Old CONNECTION REQUEST appearing out of nowhere. (c) Duplicate CONNECTION REQUEST and duplicate ACK.
TCP Connection Release- The two-army problem
TCP Connection termination using three-way handshaking
TCP Connection Release Scenarios (4)
Computer Networks Diagrams of all 6 units
Four protocol scenarios for releasing a connection. (a) Normal case of a three-way handshake. (b) final ACK lost. (c) Response lost. (d) Response lost and subsequent DRs lost.
TCP Congestion control
TCP Transmission Policy(Flow control)
Computer Networks Diagrams of all 6 units
TCP in wireless network Split TCP: Indirect TCP
TCP-aware Link Layers: Snoop
Computer Networks Diagrams of all 6 unitsUDP Header
Pseudo UDP Header
SCTP Header
Computer Networks Diagrams of all 6 unitsRTP Header
Silly window syndrome Problem
Techniques to achieve Good QoS
1. Buffering
Computer Networks Diagrams of all 6 units
2. Scheduling
FIFO queue
Priority Queue
Weighted fair queuing
Computer Networks Diagrams of all 6 units
3. The Leaky Bucket Algorithm
4. The Token Bucket Algorithm
Computer Networks Diagrams of all 6 units
RSVP-The Resource ReSerVation Protocol
Path Message
Resv messages
Reservation merging
Computer Networks Diagrams of all 6 units
Differentiated Services
Expedited Forwarding
Assured Forwarding
Computer Networks Diagrams of all 6 units
Unit VI
HTTP Header (Hypertext Transfer Protocol)
HTTP request Header
HTTP response Header
FTP (File Transfer Protocol)
Computer Networks Diagrams of all 6 units
SMTP(Simple Mail Transfer Protocol)
Computer Networks Diagrams of all 6 unitsMIME (Multipurpose Internet Mail Extensions)
MIME Header
POP3 (Post Office Protocol Version3) & IMAP (Internet Mail Extension Protocol)
DNS(Domain Name System)
Computer Networks Diagrams of all 6 unitsName Space
DNS Iterative resolution example DNS Recursive resolution example
DNS Header
DHCP (Dynamic Host Configuration Protocol)
Computer Networks Diagrams of all 6 unitsDHCP Header
DHCP Message Types
TELNET
TELNET NVT Concept
Computer Networks Diagrams of all 6 units
TELNET Command Structure
SNMP (Simple Network Management Protocol)