Change MTU (Maximum Transmission Unit) of a mininet host

[p4pifor]

How can I change the MTU of a mininet host through the python script? I've figured it out with my switch's interfaces, I'm not able to do it with hosts though. Any idea of how can I do it? Thanks in advance

[shamimtowhid]

Hello, I am not sure whether this is the correct way to do this or not, but I found a workaround for this.

When creating topology using python script we can run commands inside every host. Using the "ifconfig" command we can change MTU of a mininet host.

Example Code:

h1.cmd('ifconfig h1-eth0 mtu 65535') # here h1-eth0 is the interface name, 65535 is the new MTU for host 1.

NOTE: the above command must be executed before starting the CLI inside the python script.

[janev94]

@lantz consider closing this issue and creating a "user support" label to mark such issues. GH issues should not be used for this type of questions.

[lantz]

Remember not to abuse github issues by posting support requests or usage questions.