[  519.828192] netdevsim netdevsim460 eni460np1: renamed from eth0
[  519.926279] netdevsim netdevsim638 eni638np1: renamed from eth1
[  520.178692] Could not find device with ifindex 2000 in netnsfd 11
[  520.178895] Could not find netns with fd: 2000
[  520.179020] Cannot link a netdevsim to itself
[  520.179116] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).