[  490.984638] netdevsim netdevsim470 eni470np1: renamed from eth0
[  491.086096] netdevsim netdevsim748 eni748np1: renamed from eth1
[  491.441060] Could not find device with ifindex 2000 in netnsfd 11
[  491.441249] Could not find netns with fd: 2000
[  491.441369] Cannot link a netdevsim to itself
[  491.441503] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).