[  488.494333] netdevsim netdevsim407 eni407np1: renamed from eth0
[  488.596259] netdevsim netdevsim518 eni518np1: renamed from eth1
[  488.980785] Could not find device with ifindex 2000 in netnsfd 11
[  488.980936] Could not find netns with fd: 2000
[  488.981020] Cannot link a netdevsim to itself
[  488.981131] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).