[  519.821514] netdevsim netdevsim727 eni727np1: renamed from eth1
[  519.919466] netdevsim netdevsim284 eni284np1: renamed from eth0
[  520.168159] Could not find device with ifindex 2000 in netnsfd 11
[  520.168342] Could not find netns with fd: 2000
[  520.168438] Cannot link a netdevsim to itself
[  520.168543] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).