[  484.576059] netdevsim netdevsim510 eni510np1: renamed from eth0
[  484.576464] netdevsim netdevsim662 eni662np1: renamed from eth1
[  484.669943] Could not find device with ifindex 2000 in netnsfd 11
[  484.670033] Could not find netns with fd: 2000
[  484.670076] Cannot link a netdevsim to itself
[  484.670126] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).