[  474.205478] netdevsim netdevsim411 eni411np1: renamed from eth0
[  474.205958] netdevsim netdevsim711 eni711np1: renamed from eth1
[  474.303492] Could not find device with ifindex 2000 in netnsfd 11
[  474.303557] Could not find netns with fd: 2000
[  474.303588] Cannot link a netdevsim to itself
[  474.303624] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).