[  522.797547] netdevsim netdevsim469 eni469np1: renamed from eth0
[  522.895320] netdevsim netdevsim643 eni643np1: renamed from eth1
[  523.120382] Could not find device with ifindex 2000 in netnsfd 11
[  523.120592] Could not find netns with fd: 2000
[  523.120677] Cannot link a netdevsim to itself
[  523.120789] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).