[  833.005543][T15796] netdevsim netdevsim447 eni447np1: renamed from eth0
[  833.012998][T15794] netdevsim netdevsim638 eni638np1: renamed from eth1
[  833.699329][T15783] Could not find device with ifindex 2000 in netnsfd 11
[  833.700003][T15783] Could not find netns with fd: 2000
[  833.700489][T15783] Cannot link a netdevsim to itself
[  833.701011][T15783] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).