[  485.088086] netdevsim netdevsim447 eni447np1: renamed from eth0
[  485.090149] netdevsim netdevsim661 eni661np1: renamed from eth1
[  485.441094] Could not find device with ifindex 2000 in netnsfd 11
[  485.441244] Could not find netns with fd: 2000
[  485.441319] Cannot link a netdevsim to itself
[  485.441427] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).