[  609.185919][ T9769] netdevsim netdevsim538 eni538np1: renamed from eth1
[  609.196669][ T9772] netdevsim netdevsim471 eni471np1: renamed from eth0
[  609.914003][ T9758] Could not find device with ifindex 2000 in netnsfd 11
[  609.915090][ T9758] Could not find netns with fd: 2000
[  609.915853][ T9758] Cannot link a netdevsim to itself
[  609.916659][ T9758] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).