[  486.629676] netdevsim netdevsim457 eni457np1: renamed from eth0
[  486.725944] netdevsim netdevsim636 eni636np1: renamed from eth1
[  486.954564] Could not find device with ifindex 2000 in netnsfd 11
[  486.954863] Could not find netns with fd: 2000
[  486.954955] Cannot link a netdevsim to itself
[  486.955060] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).