[  488.427023] netdevsim netdevsim707 eni707np1: renamed from eth1
[  488.523259] netdevsim netdevsim393 eni393np1: renamed from eth0
[  488.724930] Could not find device with ifindex 2000 in netnsfd 11
[  488.725252] Could not find netns with fd: 2000
[  488.725343] Cannot link a netdevsim to itself
[  488.725444] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).