[  520.995814] netdevsim netdevsim398 eni398np1: renamed from eth0
[  521.092272] netdevsim netdevsim554 eni554np1: renamed from eth1
[  521.355849] Could not find device with ifindex 2000 in netnsfd 11
[  521.356053] Could not find netns with fd: 2000
[  521.356144] Cannot link a netdevsim to itself
[  521.356263] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).