[  538.602383] netdevsim netdevsim463 eni463np1: renamed from eth0
[  538.704489] netdevsim netdevsim514 eni514np1: renamed from eth1
[  539.065809] Could not find device with ifindex 2000 in netnsfd 11
[  539.065979] Could not find netns with fd: 2000
[  539.066063] Cannot link a netdevsim to itself
[  539.066180] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).