[  510.543808] netdevsim netdevsim758 eni758np1: renamed from eth1
[  510.641380] netdevsim netdevsim278 eni278np1: renamed from eth0
[  510.858332] Could not find device with ifindex 2000 in netnsfd 11
[  510.858583] Could not find netns with fd: 2000
[  510.858704] Cannot link a netdevsim to itself
[  510.858849] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).