[  751.432916][T14525] netdevsim netdevsim312 eni312np1: renamed from eth0
[  751.443372][T14527] netdevsim netdevsim678 eni678np1: renamed from eth1
[  752.002961][T14513] Could not find device with ifindex 2000 in netnsfd 11
[  752.003799][T14513] Could not find netns with fd: 2000
[  752.004256][T14513] Cannot link a netdevsim to itself
[  752.004707][T14513] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).