[  479.257732] netdevsim netdevsim290 eni290np1: renamed from eth0
[  479.258354] netdevsim netdevsim622 eni622np1: renamed from eth1
[  479.343347] Could not find device with ifindex 2000 in netnsfd 11
[  479.343460] Could not find netns with fd: 2000
[  479.343509] Cannot link a netdevsim to itself
[  479.343570] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).