DOKK / manpages / debian 10 / systemtap-doc / probe::netdev.change_mtu.3stap.en
PROBE::NETDEV.CHAN(3stap) Networking Tapset PROBE::NETDEV.CHAN(3stap)

probe::netdev.change_mtu - Called when the netdev MTU is changed

netdev.change_mtu

old_mtu

The current MTU

dev_name

The device that will have the MTU changed

new_mtu

The new MTU

tapset::networking(3stap)

October 2018 SystemTap Tapset Reference