[  489.422420] netdevsim netdevsim468 eni468np1: renamed from eth0
[  489.423138] netdevsim netdevsim536 eni536np1: renamed from eth1
[  489.511760] Could not find device with ifindex 2000 in netnsfd 11
[  489.511929] Could not find netns with fd: 2000
[  489.512068] Cannot link a netdevsim to itself
[  489.512207] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).