[  523.966125] netdevsim netdevsim478 eni478np1: renamed from eth0
[  524.063083] netdevsim netdevsim622 eni622np1: renamed from eth1
[  524.345837] Could not find device with ifindex 2000 in netnsfd 11
[  524.346057] Could not find netns with fd: 2000
[  524.346167] Cannot link a netdevsim to itself
[  524.346371] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).