Sunday, 28 August 2022

Travelling through a Network

 Below is an example of doing a ping test. A traceroute command is the same except it goes into much more detail. 




Data travels from one network to another in chunks  called packets in a series of hops. This is exactly what the traceroute and ping commands follow and shows the time it takes to go through each network. When I performed my ping and traceroute commands using google.com, google.com.jm and google.ca, I found that google.ca was the fastest at 21ms and google.com.jm was the slowest at 24ms. Host communicate and share information based on Ping. For that reason, we can conclude that various factors can affect the timeframe. These factors can include location which can affect the roundtrip time for each of those servers. Therefore, distance the signal travels affects response time from host to another. 

This is why using Ping commands can assist with troubleshooting internet connections. You can perform this by pinging the URL of a website. If replies are received this proves that the connection is working. However, if error messages occur, this can prove that the server is down or there may be a firewall that is preventing the connection. Therefore, firewall settings need to be adjusted. 

References

Gamio, L. (2015, May 31). How data travels across the Internet - Washington Post. The                         Washington Post. Retrieved August 14, 2022, from                                                     https://www.washingtonpost.com/graphics/national/security-of-the-internet/bgp/

Garn, D. M. (2022, April 4). The Ping Command | Computer Networking. CompTIA.                          Retrieved August 14, 2022, from https://www.comptia.org/blog/understanding-ping-command-results

Harmoush, E. (2019, February 26). Packet Traveling – Practical Networking .net. Practical                   Networking. Retrieved August 14, 2022, from https://www.practicalnetworking.net/series/packet-traveling/packet-traveling/

What is Round Trip Time (RTT) | Behind the Ping | CDN Guide. (n.d.). Imperva. Retrieved             August 14, 2022, from https://www.imperva.com/learn/performance/round-trip-time-rtt/



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