[  522.036575] netdevsim netdevsim286 eni286np1: renamed from eth0
[  522.134049] netdevsim netdevsim755 eni755np1: renamed from eth1
[  522.355887] Could not find device with ifindex 2000 in netnsfd 11
[  522.356143] Could not find netns with fd: 2000
[  522.356285] Cannot link a netdevsim to itself
[  522.356443] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).