[  472.206780] netdevsim netdevsim426 eni426np1: renamed from eth0
[  472.207811] netdevsim netdevsim657 eni657np1: renamed from eth0
[  472.278634] Could not find device with ifindex 2000 in netnsfd 11
[  472.278774] Could not find netns with fd: 2000
[  472.278877] Cannot link a netdevsim to itself
[  472.278991] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).