[  489.345977] netdevsim netdevsim441 eni441np1: renamed from eth0
[  489.346882] netdevsim netdevsim657 eni657np1: renamed from eth1
[  489.425782] Could not find device with ifindex 2000 in netnsfd 11
[  489.425884] Could not find netns with fd: 2000
[  489.425947] Cannot link a netdevsim to itself
[  489.426012] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).