[  521.181311] netdevsim netdevsim341 eni341np1: renamed from eth0
[  521.277891] netdevsim netdevsim514 eni514np1: renamed from eth1
[  521.505864] Could not find device with ifindex 2000 in netnsfd 11
[  521.506064] Could not find netns with fd: 2000
[  521.506168] Cannot link a netdevsim to itself
[  521.506277] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).