[  487.519992] netdevsim netdevsim297 eni297np1: renamed from eth0
[  487.521417] netdevsim netdevsim613 eni613np1: renamed from eth1
[  487.617634] Could not find device with ifindex 2000 in netnsfd 11
[  487.617780] Could not find netns with fd: 2000
[  487.617884] Cannot link a netdevsim to itself
[  487.618001] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).