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)


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


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?

Difference Between Transparent Bridge and Source Routing Bridge

Transparent Bridge

A transparent bridge is a type of network bridge that operates at the data link layer (layer 2) of the OSI model. It is designed to connect two or more network segments together to allow communication between devices on different segments.

The primary function of a transparent bridge is to forward traffic between network segments based on the destination MAC address.

When a device on one segment sends a packet to a device on another segment, the transparent bridge will examine the destination MAC address of the packet and forward it to the appropriate segment. The bridge will also read the MAC addresses of devices on each segment as traffic is sent through it, and will use this information to more efficiently forward traffic in the future.


  • They can help to improve network security by preventing unauthorized access.
  • They can filter traffic based on MAC address, which can prevent rogue devices from accessing the network.
  • They can also help to reduce network congestion by limiting unnecessary traffic between segments.

Source Routing Bridge

A source routing bridge (SRB) is a type of bridge used in computer networks to forward data packets between network segments. Unlike traditional bridges that use a forwarding algorithm based on the destination MAC address of the packet, SRBs use a source routing algorithm that forwards packets based on the complete route of the packet from its source to its destination.

In an SRB network, each packet contains a source route that specifies the complete path the packet must follow from its source to its destination. This source route is included in the packet header and is used by the SRB to forward the packet through the network. When a packet arrives at an SRB, the bridge examines the source route and forwards the packet to the next hop specified in the route. This process continues until the packet reaches its final destination.

Differences between transparent bridge and source routing bridge:

ParametersTransparent bridgeSource routing bridge
OperationA transparent bridge operates at the data link layer (layer 2) of the OSI model and forwards traffic based on the destination MAC address.Source routing bridge operates at the network layer (layer 3) of the OSI model and forwards traffic based on the source and destination IP addresses.
AddressingA transparent bridge uses MAC addresses to forward traffic.Source routing bridge uses IP addresses.
ConfigurationA transparent bridge is typically configured to automatically learn the MAC addresses of devices on each network segment it connects.Source routing bridge requires manual configuration of source routing tables.
FunctionalityA transparent bridge is able to filter traffic based on MAC address, which can improve network security by preventing unauthorized access.A source routing bridge, on the other hand, is able to support complex network topologies and is often used in larger networks.
CompatibilityTransparent bridges are compatible with virtually any network device that uses MAC addresses.Source routing bridges may require specific configuration and support from network devices in order to function properly.
Protocol supportTransparent bridges typically support a wide range of protocols, including Ethernet, Token Ring, and FDDI.Source routing bridges are primarily used in IP networks.  
Network traffic Transparent bridges forward all traffic received on one port to all other ports, except for the port on which the traffic was received.Source routing bridges only forward traffic that matches the source routing table.  
PerformanceTransparent bridges can introduce some latency into the network as they need to learn the MAC addresses of devices on each network segment before forwarding traffic.Source routing bridges can introduce even more latency as they need to perform a lookup on the source routing table to determine the path for each packet.
SecurityTransparent bridges can be vulnerable to MAC address spoofing attacks, where an attacker pretends to have a different MAC address in order to gain unauthorized access to the network.Source routing bridges can be vulnerable to IP spoofing attacks, where an attacker pretends to have a different IP address in order to bypass network security measures.


In conclusion, while both transparent bridges and source routing bridges are used to connect network segments, they operate at different layers of the OSI model and use different methods for forwarding packets. Transparent bridges use MAC addresses to learn the location of nodes in the network and forward packets accordingly, while source routing bridges use information in the packet header to determine the path a packet should take through the network.