[  486.901666] netdevsim netdevsim333 eni333np1: renamed from eth0
[  487.002565] netdevsim netdevsim669 eni669np1: renamed from eth1
[  487.380512] Could not find device with ifindex 2000 in netnsfd 11
[  487.380670] Could not find netns with fd: 2000
[  487.380760] Cannot link a netdevsim to itself
[  487.380860] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).