[  489.166480] netdevsim netdevsim571 eni571np1: renamed from eth1
[  489.263798] netdevsim netdevsim344 eni344np1: renamed from eth0
[  489.473309] Could not find device with ifindex 2000 in netnsfd 11
[  489.473509] Could not find netns with fd: 2000
[  489.473603] Cannot link a netdevsim to itself
[  489.473723] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).