[  487.596455] netdevsim netdevsim409 eni409np1: renamed from eth0
[  487.597183] netdevsim netdevsim625 eni625np1: renamed from eth1
[  487.688877] Could not find device with ifindex 2000 in netnsfd 11
[  487.688969] Could not find netns with fd: 2000
[  487.689024] Cannot link a netdevsim to itself
[  487.689074] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).