[  751.033162][T14621] netdevsim netdevsim412 eni412np1: renamed from eth0
[  751.043885][T14622] netdevsim netdevsim657 eni657np1: renamed from eth1
[  751.584231][T14609] Could not find device with ifindex 2000 in netnsfd 11
[  751.584699][T14609] Could not find netns with fd: 2000
[  751.585053][T14609] Cannot link a netdevsim to itself
[  751.585449][T14609] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).