[  521.339545] netdevsim netdevsim703 eni703np1: renamed from eth1
[  521.436839] netdevsim netdevsim299 eni299np1: renamed from eth0
[  521.671369] Could not find device with ifindex 2000 in netnsfd 11
[  521.671603] Could not find netns with fd: 2000
[  521.671710] Cannot link a netdevsim to itself
[  521.671949] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).