[  487.035393] netdevsim netdevsim548 eni548np1: renamed from eth1
[  487.131748] netdevsim netdevsim445 eni445np1: renamed from eth0
[  487.350965] Could not find device with ifindex 2000 in netnsfd 11
[  487.351277] Could not find netns with fd: 2000
[  487.351360] Cannot link a netdevsim to itself
[  487.351446] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).