[  471.983896] netdevsim netdevsim483 eni483np1: renamed from eth0
[  471.984246] netdevsim netdevsim638 eni638np1: renamed from eth1
[  472.065950] Could not find device with ifindex 2000 in netnsfd 11
[  472.066041] Could not find netns with fd: 2000
[  472.066086] Cannot link a netdevsim to itself
[  472.066136] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).