[  490.283395] netdevsim netdevsim573 eni573np1: renamed from eth1
[  490.383688] netdevsim netdevsim462 eni462np1: renamed from eth0
[  490.726220] Could not find device with ifindex 2000 in netnsfd 11
[  490.726378] Could not find netns with fd: 2000
[  490.726459] Cannot link a netdevsim to itself
[  490.726570] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).