[  175.391012][ T4467] netdevsim netdevsim454 eni454np1: renamed from eth0
[  175.406550][ T4469] netdevsim netdevsim567 eni567np1: renamed from eth1
[  176.167141][ T4455] Could not find device with ifindex 2000 in netnsfd 11
[  176.167975][ T4455] Could not find netns with fd: 2000
[  176.168372][ T4455] Cannot link a netdevsim to itself
[  176.168806][ T4455] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).