[  839.001155][T14657] netdevsim netdevsim344 eni344np1: renamed from eth0
[  839.017180][T14658] netdevsim netdevsim622 eni622np1: renamed from eth1
[  839.841943][T14644] Could not find device with ifindex 2000 in netnsfd 11
[  839.842905][T14644] Could not find netns with fd: 2000
[  839.843297][T14644] Cannot link a netdevsim to itself
[  839.843934][T14644] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).