[  485.614594] netdevsim netdevsim443 eni443np1: renamed from eth0
[  485.715560] netdevsim netdevsim644 eni644np1: renamed from eth1
[  486.078973] Could not find device with ifindex 2000 in netnsfd 11
[  486.079144] Could not find netns with fd: 2000
[  486.079233] Cannot link a netdevsim to itself
[  486.079338] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).