[  483.598029] netdevsim netdevsim308 eni308np1: renamed from eth0
[  483.700126] netdevsim netdevsim631 eni631np1: renamed from eth1
[  484.061894] Could not find device with ifindex 2000 in netnsfd 11
[  484.062023] Could not find netns with fd: 2000
[  484.062101] Cannot link a netdevsim to itself
[  484.062185] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).