[  522.916890] netdevsim netdevsim376 eni376np1: renamed from eth0
[  523.014579] netdevsim netdevsim685 eni685np1: renamed from eth1
[  523.264360] Could not find device with ifindex 2000 in netnsfd 11
[  523.264516] Could not find netns with fd: 2000
[  523.264593] Cannot link a netdevsim to itself
[  523.264684] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).