Network monitoring system
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Computer networks play an important role today, but it is essential to check if computers are ready for data transfer by determining if they are connected to the network. Network monitoring collects information from various parts of the network to manage and control it. It has three main goals: performance monitoring, fault monitoring, and account monitoring. Tools like ping and trace route are used to check connectivity and network performance.
Network monitoring system
- 2. Introduction Computer Networks play an increasingly important role in today’s technological age But before the transfer of any information between the computers it is essential to know if this transfer can actually take place For this, it is important to check if the computers ready for data transfer are up in the network or not
- 4. Fundamentals of Network Monitoring The purpose of network monitoring is the collecting of useful information from various parts of the network so that the network can be managed and controlled using the collected information Network monitoring techniques are developed to allow network management applications to check the states of their network devices As more and more network devices are used to build bigger networks, network monitoring techniques are expanded to monitoring networks as a whole
- 5. Three basic goals of network monitoring: Performance monitoring Fault monitoring Account monitoring
- 6. A list of network indicators Circuit Availability: The actual time that a user can dial up to a network and the network connection is available for the user Node Availability: The actual time that a user can use network nodes, multiplexers and routers without having error Blocking Factor: The number of user who cannot access the network because of busy signal in theory Response Time: The time to transmit a signal and receive a response for the signal
- 7. Ideal network monitoring system Integration Productivity Efficiency
- 8. Sources of data Measurement of metrics This refers to the method of obtaining network data by measuring certain metrics regarding Network performance An example might be the measurement of packet round trip times and packet loss
- 10. Basic terminology LAN: Ex – inside school, office building MAN: Ex - telephone lines WAN: Ex – within a town or city Network switch Router Port number IP address
- 11. Network monitoring tools Ping
- 12. Network monitoring tools Trace Route
- 13. Network monitoring tools Switch port mapper
- 15. Introduction to ping What is PING? How does ping helps? Why should we use ping?
- 16. Using the ping command Syntax: xxx: xxx: xxx: xxx To check connectivity by using the ping command, at the command prompt, type ping and the IP address you want to reach
- 17. Example of ping The following example illustrates how to send two pings, each 1,450 bytes in size, to IP address 10.3.1.131: C:>ping 10.3.1.131 -t Pinging 10.3.1.131 with 1450 bytes of data: Reply from 10.3.1.131: bytes=1450 time<10ms TTL=32 Reply from 10.3.1.131: bytes=1450 time<10ms TTL=32 Ping statistics for 10.3.1.131: Packets: Sent = 2, Received = 2, Lost = 0 (0% loss), Approximate roundtrip times in milliseconds: Minimum = 0ms, Maximum = 10ms, Average = 2ms
- 18. Conclusion Network Monitoring System is the system which monitors the system which is connected in LAN. In case our server, networks are crashed due to overload of other devices. It is easy to understand for user that if color changes to Green it means that the system is up in a network, if color changes to Red then it means that system is down in a network For justifying the system is present or not in network there are some tools of network monitoring system like PING, Trace route, switch port mapper
- 19. Reference Books Computer Networking by author James Kurose and Keith Ross Computer network and interface by author Furrosion Links www.wikipedia.org http://www.devdaily.com/java/java-ping-class