[  770.814176][T14739] netdevsim netdevsim500 eni500np1: renamed from eth0
[  770.859788][T14740] netdevsim netdevsim664 eni664np1: renamed from eth1
[  771.626768][T14727] Could not find device with ifindex 2000 in netnsfd 11
[  771.627403][T14727] Could not find netns with fd: 2000
[  771.627794][T14727] Cannot link a netdevsim to itself
[  771.628262][T14727] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).