[  830.189911][T15781] netdevsim netdevsim335 eni335np1: renamed from eth0
[  830.212228][T15780] netdevsim netdevsim640 eni640np1: renamed from eth1
[  830.806422][T15768] Could not find device with ifindex 2000 in netnsfd 11
[  830.807017][T15768] Could not find netns with fd: 2000
[  830.807489][T15768] Cannot link a netdevsim to itself
[  830.808259][T15768] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).