[  811.794929][T15793] netdevsim netdevsim437 eni437np1: renamed from eth0
[  811.821058][T15794] netdevsim netdevsim604 eni604np1: renamed from eth1
[  812.475785][T15781] Could not find device with ifindex 2000 in netnsfd 11
[  812.476834][T15781] Could not find netns with fd: 2000
[  812.477448][T15781] Cannot link a netdevsim to itself
[  812.478082][T15781] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).