[  522.078379] netdevsim netdevsim633 eni633np1: renamed from eth1
[  522.175480] netdevsim netdevsim280 eni280np1: renamed from eth0
[  522.406043] Could not find device with ifindex 2000 in netnsfd 11
[  522.406262] Could not find netns with fd: 2000
[  522.406377] Cannot link a netdevsim to itself
[  522.406514] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).