[  830.500812][T15780] netdevsim netdevsim509 eni509np1: renamed from eth0
[  830.523852][T15781] netdevsim netdevsim734 eni734np1: renamed from eth1
[  831.248345][T15768] Could not find device with ifindex 2000 in netnsfd 11
[  831.248971][T15768] Could not find netns with fd: 2000
[  831.249776][T15768] Cannot link a netdevsim to itself
[  831.250396][T15768] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).