[  480.339218] netdevsim netdevsim750 eni750np1: renamed from eth1
[  480.439287] netdevsim netdevsim443 eni443np1: renamed from eth0
[  480.786980] Could not find device with ifindex 2000 in netnsfd 11
[  480.787137] Could not find netns with fd: 2000
[  480.787224] Cannot link a netdevsim to itself
[  480.787320] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).