[  818.136262][T15788] netdevsim netdevsim423 eni423np1: renamed from eth0
[  818.169122][T15789] netdevsim netdevsim620 eni620np1: renamed from eth1
[  818.779281][T15775] Could not find device with ifindex 2000 in netnsfd 11
[  818.780055][T15775] Could not find netns with fd: 2000
[  818.781037][T15775] Cannot link a netdevsim to itself
[  818.781678][T15775] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).