[  490.469375] netdevsim netdevsim478 eni478np1: renamed from eth0
[  490.469991] netdevsim netdevsim534 eni534np1: renamed from eth1
[  490.564209] Could not find device with ifindex 2000 in netnsfd 11
[  490.564332] Could not find netns with fd: 2000
[  490.564400] Cannot link a netdevsim to itself
[  490.564457] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).