[  473.960745] netdevsim netdevsim355 eni355np1: renamed from eth0
[  473.961305] netdevsim netdevsim669 eni669np1: renamed from eth1
[  474.040616] Could not find device with ifindex 2000 in netnsfd 11
[  474.040731] Could not find netns with fd: 2000
[  474.040783] Cannot link a netdevsim to itself
[  474.040845] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).