[  522.845526] netdevsim netdevsim693 eni693np1: renamed from eth1
[  522.942948] netdevsim netdevsim344 eni344np1: renamed from eth0
[  523.166082] Could not find device with ifindex 2000 in netnsfd 11
[  523.166298] Could not find netns with fd: 2000
[  523.166390] Cannot link a netdevsim to itself
[  523.166488] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).