[  475.136185] netdevsim netdevsim514 eni514np1: renamed from eth1
[  475.136544] netdevsim netdevsim452 eni452np1: renamed from eth0
[  475.233537] Could not find device with ifindex 2000 in netnsfd 11
[  475.233619] Could not find netns with fd: 2000
[  475.233662] Cannot link a netdevsim to itself
[  475.233711] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).