COMPUTER NETWORK AND SECURITY
INTRODUCTION TO COMPUTER NETWORK
PHYSICAL LAYER
DATA LINK LAYER
NETWORK LAYER
Transport Layer
Multiple Choice Question
Application Layer
Network Security
Multimedia and Future Networking
COMPUTER NETWORK LAB WORK
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Routing protocols like RIP (Routing Information Protocol), BGP (Border Gateway Protocol), and OSPF (Open Shortest Path First) are essential components in computer networking. These protocols facilitate the exchange of routing information among routers, helping to build and update routing tables and make informed decisions about the best paths for data transmission. 

1. RIP (Routing Information Protocol):

  • Type: Distance-Vector Routing Protocol.
  • Version: RIP has two versions - RIP v1 and RIP v2.
  • Metric: RIP uses hop count as its metric. Each hop from one router to another adds to the overall metric.
  • Routing Updates: RIP routers exchange routing tables periodically (usually every 30 seconds) or when significant changes occur.
  • Use Case: RIP is often used in small to medium-sized networks and is relatively simple to configure.

2. BGP (Border Gateway Protocol):

  • Type: Path Vector Routing Protocol.
  • Scope: BGP is primarily used for exterior routing, facilitating communication between different Autonomous Systems (ASes) on the Internet.
  • Path Selection: BGP considers multiple factors when selecting the best path, including AS path, origin, and various policies defined by network administrators.
  • Routing Updates: BGP routers exchange updates only when there are changes in the network topology to conserve bandwidth.
  • Use Case: BGP is crucial for interconnecting large-scale networks, such as those of Internet Service Providers (ISPs) and large enterprises.

3. OSPF (Open Shortest Path First):

  • Type: Link-State Routing Protocol.
  • Metric: OSPF uses a metric based on cost, which is calculated based on link bandwidth.
  • Database: OSPF routers build and maintain a Link-State Database (LSDB) to have a detailed view of the network's topology.
  • Path Calculation: OSPF routers use the Dijkstra algorithm to calculate the shortest path to each destination.
  • Routing Updates: OSPF routers send updates only when there are changes in the network topology, making it bandwidth-efficient.
  • Use Case: OSPF is often used in enterprise networks and internet service provider environments.

 

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