[  522.032951] netdevsim netdevsim431 eni431np1: renamed from eth0
[  522.128937] netdevsim netdevsim522 eni522np1: renamed from eth1
[  522.377511] Could not find device with ifindex 2000 in netnsfd 11
[  522.377709] Could not find netns with fd: 2000
[  522.377801] Cannot link a netdevsim to itself
[  522.377902] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).