[  521.606157] netdevsim netdevsim266 eni266np1: renamed from eth0
[  521.704096] netdevsim netdevsim567 eni567np1: renamed from eth1
[  521.935545] Could not find device with ifindex 2000 in netnsfd 11
[  521.935743] Could not find netns with fd: 2000
[  521.935854] Cannot link a netdevsim to itself
[  521.935964] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).