[  473.418550] netdevsim netdevsim454 eni454np1: renamed from eth0
[  473.418817] netdevsim netdevsim650 eni650np1: renamed from eth1
[  473.506180] Could not find device with ifindex 2000 in netnsfd 11
[  473.506305] Could not find netns with fd: 2000
[  473.506411] Cannot link a netdevsim to itself
[  473.506527] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).