[  485.450898] netdevsim netdevsim651 eni651np1: renamed from eth1
[  485.552509] netdevsim netdevsim457 eni457np1: renamed from eth0
[  486.371394] Could not find device with ifindex 2000 in netnsfd 11
[  486.371605] Could not find netns with fd: 2000
[  486.371787] Cannot link a netdevsim to itself
[  486.371941] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).