[  487.194939] netdevsim netdevsim535 eni535np1: renamed from eth1
[  487.292833] netdevsim netdevsim393 eni393np1: renamed from eth0
[  487.520934] Could not find device with ifindex 2000 in netnsfd 11
[  487.521181] Could not find netns with fd: 2000
[  487.521295] Cannot link a netdevsim to itself
[  487.521430] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).