[  486.427017] netdevsim netdevsim270 eni270np1: renamed from eth0
[  486.528629] netdevsim netdevsim596 eni596np1: renamed from eth1
[  486.878322] Could not find device with ifindex 2000 in netnsfd 11
[  486.878467] Could not find netns with fd: 2000
[  486.878592] Cannot link a netdevsim to itself
[  486.878731] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).