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Create a simple network in mininet




To create a simple network in mininet, the following steps should be followed.

1. Open terminal
2. Ensure mininet is installed 
3. Enter command: sudo mn



This creates a simple network with two hosts connected to an OVS switch, which in turn is connected to the inbuilt sdn controller




DETAILS OF THE NETWORK
To retrieve metadata regarding the network, the following commands can be used 

  • nodes
This command displays the nodes in the network


  • links
This command displays the links in the network


  • ports
This command displays the ports used in the network


  • intfs
This command displays the interfaces available in the network


  • dump
This command displays the overall information of the network including hostname, hostip, interfaces, controller information, etc.





CONNECTIVITY BETWEEN HOSTS
To ensure connectivity between the hosts, the following commands are used

  • pingall
pingall helps the user to know whether every host is able to communicate with every other host in the network


  • pingallfull
An advanced version of pingall is pingallfull which provides a detailed report of the same


  • ping
ping command helps us the check the connectivity between two hosts

The ping command can be stopped using CTRL+C



We can determine the number of times to be pinged using keyword
host1 ping host2 -c [number of times to be pinged]


  • exit
exit command kills all the processes running with respect to this network



Our network has been created and we have learned how to handle them

Good Luck!


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