[  479.130423] netdevsim netdevsim345 eni345np1: renamed from eth0
[  479.131239] netdevsim netdevsim534 eni534np1: renamed from eth1
[  479.221261] Could not find device with ifindex 2000 in netnsfd 11
[  479.221375] Could not find netns with fd: 2000
[  479.221422] Cannot link a netdevsim to itself
[  479.221480] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).