[  474.341858] netdevsim netdevsim457 eni457np1: renamed from eth0
[  474.342718] netdevsim netdevsim548 eni548np1: renamed from eth1
[  474.431956] Could not find device with ifindex 2000 in netnsfd 11
[  474.432055] Could not find netns with fd: 2000
[  474.432108] Cannot link a netdevsim to itself
[  474.432169] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).