[  488.953171] netdevsim netdevsim455 eni455np1: renamed from eth0
[  489.054454] netdevsim netdevsim611 eni611np1: renamed from eth1
[  489.392016] Could not find device with ifindex 2000 in netnsfd 11
[  489.392153] Could not find netns with fd: 2000
[  489.392231] Cannot link a netdevsim to itself
[  489.392322] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).