[  519.412845] netdevsim netdevsim493 eni493np1: renamed from eth0
[  519.510121] netdevsim netdevsim517 eni517np1: renamed from eth1
[  519.744394] Could not find device with ifindex 2000 in netnsfd 11
[  519.744557] Could not find netns with fd: 2000
[  519.744630] Cannot link a netdevsim to itself
[  519.744717] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).