[  783.106657][T14759] netdevsim netdevsim419 eni419np1: renamed from eth0
[  783.127712][T14761] netdevsim netdevsim612 eni612np1: renamed from eth1
[  783.866032][T14747] Could not find device with ifindex 2000 in netnsfd 11
[  783.866653][T14747] Could not find netns with fd: 2000
[  783.872414][T14747] Cannot link a netdevsim to itself
[  783.873155][T14747] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).