[  490.555866] netdevsim netdevsim571 eni571np1: renamed from eth1
[  490.650932] netdevsim netdevsim259 eni259np1: renamed from eth0
[  490.916725] Could not find device with ifindex 2000 in netnsfd 11
[  490.916901] Could not find netns with fd: 2000
[  490.916979] Cannot link a netdevsim to itself
[  490.917071] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).