[  522.762903] netdevsim netdevsim344 eni344np1: renamed from eth0
[  522.860012] netdevsim netdevsim600 eni600np1: renamed from eth1
[  523.079352] Could not find device with ifindex 2000 in netnsfd 11
[  523.079550] Could not find netns with fd: 2000
[  523.079641] Cannot link a netdevsim to itself
[  523.079777] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).