[  518.768643] netdevsim netdevsim454 eni454np1: renamed from eth0
[  518.866002] netdevsim netdevsim764 eni764np1: renamed from eth1
[  519.113785] Could not find device with ifindex 2000 in netnsfd 11
[  519.113970] Could not find netns with fd: 2000
[  519.114061] Cannot link a netdevsim to itself
[  519.114166] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).