Inside the IP network stack, the MTU can manifest as a limit ... There are three key concepts to understand in the QDisc layer: QDiscs, classes and filters. The QDisc is the Linux abstraction for ...

When you use the ip a (or ip addr) command to get information on all the network interfaces on your system, you’re going to see something like this: $ ip a 1: lo: mtu 65536 qdisc noqueue state ...