[  485.998505] netdevsim netdevsim378 eni378np1: renamed from eth0
[  486.094979] netdevsim netdevsim546 eni546np1: renamed from eth1
[  486.322138] Could not find device with ifindex 2000 in netnsfd 11
[  486.322500] Could not find netns with fd: 2000
[  486.322607] Cannot link a netdevsim to itself
[  486.322743] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).