[  696.980527][T13028] netdevsim netdevsim497 eni497np1: renamed from eth0
[  697.001366][T13030] netdevsim netdevsim581 eni581np1: renamed from eth1
[  697.670350][T13015] Could not find device with ifindex 2000 in netnsfd 11
[  697.671643][T13015] Could not find netns with fd: 2000
[  697.672295][T13015] Cannot link a netdevsim to itself
[  697.672948][T13015] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).