What is MTU in Ubuntu? by LinuxWays Team. MTU (Stands for Maximum Transmission Unit) is the maximum size of the packet that can be transmitted from a network interface. All the devices including servers and switches/routers involved in communication should have the same MTU size.
How do I find my MTU size in Linux? The best way to check MTU size in Linux is using the ifconfig command. Open the terminal and run ifconfig interface name |grep mtu. This command will list the configuration of a network interface including MTU size.
How do I change the MTU value in Linux?
- Open Terminal.
- Type the command below and hit enter. ping -c 3 -M do –s 1500 google.com.
- Start increasing the MTU value with small increments after you get a successful reply.
- This number is your MTU value.
What is MTU in Linux? Answer. Maximum transmission unit (MTU) determines the maximum payload size of a packet that is sent. The default standard value is 1500 bytes.