[  459.550592] netdevsim netdevsim390 eni390np1: renamed from eth0
[  459.551414] netdevsim netdevsim591 eni591np1: renamed from eth1
[  459.638493] Could not find device with ifindex 2000 in netnsfd 11
[  459.638659] Could not find netns with fd: 2000
[  459.638787] Cannot link a netdevsim to itself
[  459.638909] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).