[  486.714317] netdevsim netdevsim323 eni323np1: renamed from eth0
[  486.714746] netdevsim netdevsim690 eni690np1: renamed from eth1
[  486.811434] Could not find device with ifindex 2000 in netnsfd 11
[  486.811552] Could not find netns with fd: 2000
[  486.811628] Cannot link a netdevsim to itself
[  486.811736] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).