[  752.767438][T14604] netdevsim netdevsim394 eni394np1: renamed from eth0
[  752.784428][T14606] netdevsim netdevsim644 eni644np1: renamed from eth1
[  753.378233][T14592] Could not find device with ifindex 2000 in netnsfd 11
[  753.383882][T14592] Could not find netns with fd: 2000
[  753.384379][T14592] Cannot link a netdevsim to itself
[  753.385364][T14592] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).