[  487.445980] netdevsim netdevsim742 eni742np1: renamed from eth1
[  487.542826] netdevsim netdevsim483 eni483np1: renamed from eth0
[  487.769564] Could not find device with ifindex 2000 in netnsfd 11
[  487.769979] Could not find netns with fd: 2000
[  487.770090] Cannot link a netdevsim to itself
[  487.770223] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).