[  455.008481] netdevsim netdevsim444 eni444np1: renamed from eth0
[  455.010201] netdevsim netdevsim600 eni600np1: renamed from eth1
[  455.094439] Could not find device with ifindex 2000 in netnsfd 11
[  455.094540] Could not find netns with fd: 2000
[  455.094590] Cannot link a netdevsim to itself
[  455.094645] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).