[  487.133083] netdevsim netdevsim545 eni545np1: renamed from eth1
[  487.230667] netdevsim netdevsim347 eni347np1: renamed from eth0
[  487.444528] Could not find device with ifindex 2000 in netnsfd 11
[  487.444834] Could not find netns with fd: 2000
[  487.444912] Cannot link a netdevsim to itself
[  487.444997] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).