[  474.144685] netdevsim netdevsim401 eni401np1: renamed from eth0
[  474.145260] netdevsim netdevsim671 eni671np1: renamed from eth1
[  474.222885] Could not find device with ifindex 2000 in netnsfd 11
[  474.223025] Could not find netns with fd: 2000
[  474.223126] Cannot link a netdevsim to itself
[  474.223237] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).