Computer Network Tutorial

Introduction of Computer Network Types of Computer Network Network Topology Computer Networking Architecture Transmission Modes (Data Flow) Basic Networking Devices Integrate Services Digital Network (ISDN)

Model

OSI Model TCP/IP Model

Physical Layer

Digital Transmission Analog Transmission Transmission Media Switching

Data Link Layer

Error detection and Error correction Data Link Control Multiple Access Aloha

Network Layer

Network Layer - Logical Address Address Mapping Unicast Routing Protocol

Transport Layer

Process to Process Delivery User Datagram Protocol Transmission Control Protocol Stream Control Transmission Protocol Session Layer and Presentation Layer

Application Layer

Domain Name System Application Protocol E-mail Cryptography

Misc

Classes of Routing Protocols Classification of Routing Algorithms Controlled Access Protocols in Computer Networks Differences between IPv4 and IPv6 Fixed and Flooding Routing Algorithms Advantages and Disadvantages of Fibre Optics Cable APIPA Difference between Active and Passive FTP Fiber Optics and its Types Method of Joining and Fusion of Fiber Optic Cable Define Framing in Computer Network Disadvantages of Computer Network Mesh Topology Diagram in Computer Network Ring Topology in Computer Network Star Topology in Computer Networks 4G Mobile Communication Technology Advantages and Disadvantages of LAN Advantages and Disadvantages of MAN Advantages and Disadvantages of WAN Application Layer in OSI Model Cyclic Redundancy Check Example Data link layer in OSI model Difference between Transport and Network Layer Hamming Code Example Network Layer in OSI Model Session Layer in OSI Model Transport Layer in OSI Model Two Port Network in Computer Networks Uses of Computer Networks What is Computer Network What is Framing in a Computer Network Advantages and Disadvantages of Bus Topology Difference between Star Topology and Bus Topology Subnetting in Computer Network Subnetting Questions and Answers What is Bus Topology What is Network Topology and Types in Computer Networks Access Control in Networking Basic Characteristics of Computer Network Benefits of SOCKS5 Proxy in Computer Networks Computer Network viva Questions Difference between BOOTP and RARP Difference Between Network Topologies and Network Protocols Difference between NFC and RFID Difference Between Point-to-Point Link and star Topology Network Differences Between MSS and MTU Differences Between Trunk Port and Access Port Different Modes of Communication in Computer Networks MIME Protocol in Computer Networks Modes of Communication in Computer Networks Network Attack in Computer Network Port Address in Networking Simplest Protocol in Computer Network Sliding Window Protocol in Computer Network Stop And Wait Protocol in Computer Networks TCP 3-Way Handshake Process in Computer Networks What is a Proxy Server What is APPN What is ICMP Protocol What is Point-to-Point Protocol What is Port Address in Networking What is the HDLC Protocol What is VRRP Protocol Difference Between Analog and Digital Signals Difference Between Hub and Repeater Difference between Repeater and Switch Difference Between Transparent Bridge and Source Routing Bridge Source Routing Bridge in Computer Networks Transparent Bridge in Computer Networks Transport Protocol in Computer Networks Types of CSMA in Computer Networks What is Wired and Wireless Networking Network Security in Computer Network Disadvantages of Extranet Difference Between TELNET and FTP Define Protocol in Computer Networks Guided Transmission Media in Computer Network What is a Gateway in a Computer Network IGMP in Computer Networks LAN Protocols in Computer Networks MAN Meaning in Computer Modulation Techniques in Computer Networks Switching in DCN TCP/IP Applications What is IGMP? What is Modem in Networking What is Non-Persistent CSMA Difference between Cell Splitting and Cell Sectoring Forouzen Computer Network Open Loop and Closed Loop Congestion Control Types of Cluster Computing WAP-Wireless Access Point What are the elements of the Transport Protocol Difference between Gateway and Switch Flow Control in Data Link Layer Body Area Network Flooding in Computer Network Token Ring in Computer Networks VoIP in Computer Networks What is Infrared Transmission Congestion Control Techniques Forward Error Correction (FEC) Switching Techniques What is Telnet in Computer Network What are the Types of IPv4 Addresses IEEE 802.6 (DQDB) IEEE 802.15.4 Technology What is HDLC (High-level Data Link Control)? What is SMS Hubbing in Telecom? Circuit Switching in Computer Networks Communication Satellites in Computer Networks Features of HTTP Protocol IMAP4 (Internet Message Access Protocol) Internet Services How to Set up a Wireless Router Internetwork Routing in Computer Networks Distributed Computing System Features of GSM The 802.11 MAC Sublayer Protocol What is IEEE 802.3? What are Hubs and Switches in Computer Networks? What is Modem in a Computer Network? What is multicasting in Computer Networks? GSM -The Mobile Station What is Network Server? Slotted Aloha in Computer Network What is Ethernet in Computer Networks What is Arpanet? Radio Access Network (RAN) TCP 3-Way Handshake Process PING SWEEP (ICMP SWEEP) Print Server Private IP Address Security Services in Computer Networks Protocol Data Unit (PDU) CSMA with Collision Avoidance (CSMA/CA) What is Gateway in Computer Network? Advantages of Networking Data Link Layer Design Issues DHCP in Computer Networks Internet Security Association and Key Management Protocol (ISAKMP) What is Switch Hub? Telnet Full form in Networking Multimedia Systems Quality of Service in Computer Networks What is Carrier Sense Multiple Access (CSMA)? What is Circuit Switching What is Duplex Network? What is Web Protocol Network LAN Technologies Classes in Computer Network Low-Density Parity Check (LDPC) Wireless Internet Service Providers(Wisps) What is Handshaking? Cache Server What Is WSN Network? Check Sum Error Detection Linear Bus Topology Functions of the Transport Layer Infrared Transmission in Computer Networks Digital Signal in Computer Network Digital Data Transmission in Computer Networks Define Checksum with Example Computer Network Security Requirements Brust Errors in Computer Network Back Side Bus (BSB) 2-Dimension Parity Check in Computer Network Router and Brouter Microwave Transmission in Computer Networks Magnetic Media in Computer Network A One-Bit Sliding Window Protocol CDMA-Near-Far Problem Reference Models in Computer Networks Uni-cast, Broadcast, and Multicast in Computer Networks Uses Of Bridges in Computer Networks What are Gateways in Computer Network?

Sliding Window Protocol in Computer Network

The sliding window protocol is a method used in computer networking to ensure reliable and efficient data transfer between two devices over a network. It is a flow control technique that helps to optimize the usage of network bandwidth by allowing multiple data packets to be transmitted and received simultaneously.

In the sliding window protocol, the sender maintains a sliding window of sequence numbers that represents the range of unacknowledged packets that it has transmitted. The size of the sliding window is determined by the number of packets that the sender can transmit before waiting for an acknowledgment from the receiver.

When the sender sends a packet, it waits for an acknowledgment from the receiver. If it receives an acknowledgment, it updates the sliding window to include the next sequence number and sends the next packet. If it does not receive an acknowledgment within a certain time frame, it retransmits the packet.

Advantages of Sliding Window Protocol

The sliding window protocol offers several advantages over other methods of data transfer in computer networking, including:

  • Efficient use of network bandwidth: The sliding window protocol allows for multiple packets to be transmitted and received simultaneously, which optimizes the usage of network bandwidth.
  • Reliability: The protocol provides reliability in data transfer by automatically retransmitting lost packets and ensuring that all packets are received in the correct sequence.
  • Flow control: The protocol helps to control the flow of data between the sender and receiver by preventing data overload or congestion.
  • Improved network performance: By reducing the number of retransmissions and optimizing the usage of network bandwidth, the sliding window protocol can improve network performance and reduce latency.
  • Flexibility: The protocol can be implemented in both connection-oriented and connectionless networks.

Overall, the sliding window protocol is an efficient and reliable method of data transfer that can improve network performance and ensure the successful transmission of data over a network.

Disadvantages of Sliding Window Protocol

As the sliding window protocol offers several advantages in data transfer, there are also some potential disadvantages to consider:

  • Increased complexity: The sliding window protocol can be more complex to implement as compared to other methods of data transfer because it requires additional resources and development time.
  • Overhead: The protocol adds overhead to data packets due to the inclusion of sequence numbers and other control information, which can increase the overall size of data packets and reduce network efficiency.
  • Congestion control: The sliding window protocol does not include explicit congestion control mechanisms, which can result in network congestion if the sender transmits data too quickly.
  • Delayed ACKs: This protocol may result in delayed acknowledgments (ACKs) because the receiver has to wait for ACK until the next packet is received, which can result in additional retransmissions and increased network latency.
  • Limited scalability: The sliding window protocol may not scale well in high-speed networks or networks with a large number of hosts, as the protocol requires a sequence number and window size for each connection.

Overall, the sliding window protocol is a useful method of data transfer, but it may not be the best option for all network environments or use cases. It is important to consider the specific requirements and limitations of a network before choosing a data transfer protocol.

Uses of Sliding Window Protocol

The sliding window protocol is widely used in computer networking for reliable and efficient data transfer. Some of the specific uses of the protocol include:

  • Transmission Control Protocol (TCP): The sliding window protocol is a fundamental component of the TCP protocol suite, which is used for reliable data transfer over the internet.
  • File transfer protocols: Many file transfer protocols, such as FTP and SFTP, use the sliding window protocol to ensure reliable and efficient transfer of large files over a network.
  • Real-time applications: Real-time applications, such as voice and video streaming, require reliable and efficient data transfer to ensure that data is received in a timely manner. The sliding window protocol is often used in these applications to optimize network usage and minimize latency.
  • Wireless networks: Wireless networks can be subject to interference and other factors that can impact the reliability of data transfer. The sliding window protocol is used in wireless networks to ensure that data is reliably transmitted and received, even in challenging environments.
  • Satellite communication: Satellite communication can be subject to significant latency due to the distance that data must travel. The sliding window protocol is used in satellite communication to optimize network usage and minimize the impact of latency.

Overall, the sliding window protocol is a versatile and widely-used method of data transfer that is essential for many different types of networks and applications.

In conclusion, the sliding window protocol is a fundamental technique used in computer networking for reliable and efficient data transfer. It allows for multiple packets to be transmitted and received simultaneously, optimizes the usage of network bandwidth, and provides reliability through automatic retransmission of lost packets. This protocol may have some potential disadvantages, such as increased complexity and overhead, it is widely used in a variety of network environments