[  490.407003] netdevsim netdevsim669 eni669np1: renamed from eth1
[  490.507627] netdevsim netdevsim290 eni290np1: renamed from eth0
[  490.870319] Could not find device with ifindex 2000 in netnsfd 11
[  490.870489] Could not find netns with fd: 2000
[  490.870586] Cannot link a netdevsim to itself
[  490.870714] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).