[  522.080394] netdevsim netdevsim444 eni444np1: renamed from eth0
[  522.176676] netdevsim netdevsim537 eni537np1: renamed from eth1
[  522.427312] Could not find device with ifindex 2000 in netnsfd 11
[  522.427509] Could not find netns with fd: 2000
[  522.427595] Cannot link a netdevsim to itself
[  522.427703] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).