[  522.552789] netdevsim netdevsim422 eni422np1: renamed from eth0
[  522.650024] netdevsim netdevsim680 eni680np1: renamed from eth1
[  522.854629] Could not find device with ifindex 2000 in netnsfd 11
[  522.854838] Could not find netns with fd: 2000
[  522.854959] Cannot link a netdevsim to itself
[  522.855101] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).