Traveling Through A Network

Packets travel through the network using a ping which stands for Packet Internet Groper. Basically when you ping an IP address or a website a packet of information is sent to that IP address or IP address of that specific website and then requests a response from the recipient of that site.

When I pinged three websites (google.com, facebook.com, and youtube.com), the websites that I frequent the most, I noticed a couple of things. I also tracerouted the sites which means that I mapped the path of the message as it travelled through the network to another computer.

I noticed that as far as pinging goes, all three sites sent and received 4 echo replies each from their IP addresses which means that a connection was established for all three. However, I noticed something interesting about the round-trip time of each hop for all three sites. For Facebook, on the sixth and seventh hop that it made with its six packets in total to reach its destination, all six packets show that the command timed out before it received a response which looks like a packet was lost, two of the packets on the 11th hop did the same. For Facebook, the same problem presented itself on the sixth hop but surprisingly when I did YouTube, only two of the packets from the 5th hop showed that they were lost and the domain name actually showed as  be-303-arsc1.seattle.wa.seattle.comcast.net [2001:558:a0:1d7::1] instead of Request timed out.

I think the main correlation between the round trip times and geographical locations is that the round trip time is the time it takes to get the packets to that location and if it doesn't get there normally it means that the packets were lost.

I think that using ping and traceroute commands to troubleshoot your connection would be pretty useful since a ping would be able to essentially find the location of any IP address or domain name inputted into the system and traceroute can map the path that the message travels through. Using both could help determine if the computer is even on the network and can show if the IP address can even be located on the server.

Two reasons why a ping request or traceroute command may time out or return with an error response is a firewall might be blocking the connection or the network adapter settings that you have set up may be corrupt.

Below are my Ping and Traceroute examples I used with my computer.

Google Ping and Traceroute.pngYouTube Ping and Traceroute.pngFacebook Ping and Traceroute.png

 


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