[  490.378905] netdevsim netdevsim752 eni752np1: renamed from eth1
[  490.475575] netdevsim netdevsim426 eni426np1: renamed from eth0
[  490.700577] Could not find device with ifindex 2000 in netnsfd 11
[  490.700854] Could not find netns with fd: 2000
[  490.700961] Cannot link a netdevsim to itself
[  490.701074] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).