[  487.402282] netdevsim netdevsim439 eni439np1: renamed from eth0
[  487.503976] netdevsim netdevsim664 eni664np1: renamed from eth1
[  487.855421] Could not find device with ifindex 2000 in netnsfd 11
[  487.855590] Could not find netns with fd: 2000
[  487.855689] Cannot link a netdevsim to itself
[  487.855810] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).