This is the simplest example, it just adds a fixed amount of delay to all packets going out of the local Ethernet. # tc qdisc add dev eth0 root netem delay 100ms Now a simple ping test to host on the local network should show an increase of 100 milliseconds. The delay is limited by the clock resolution of the kernel (HZ). On most 2.4 systems, the system clock runs at 100hz which allows delays in i