[  515.311106] netdevsim netdevsim566 eni566np1: renamed from eth1
[  515.409208] netdevsim netdevsim452 eni452np1: renamed from eth0
[  515.600505] Could not find device with ifindex 2000 in netnsfd 11
[  515.600674] Could not find netns with fd: 2000
[  515.600763] Cannot link a netdevsim to itself
[  515.600861] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).