[  542.490494] netdevsim netdevsim566 eni566np1: renamed from eth1
[  542.590946] netdevsim netdevsim312 eni312np1: renamed from eth0
[  542.962234] Could not find device with ifindex 2000 in netnsfd 11
[  542.962382] Could not find netns with fd: 2000
[  542.962465] Cannot link a netdevsim to itself
[  542.962564] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).