[  489.254246] netdevsim netdevsim697 eni697np1: renamed from eth1
[  489.351959] netdevsim netdevsim409 eni409np1: renamed from eth0
[  489.594041] Could not find device with ifindex 2000 in netnsfd 11
[  489.594398] Could not find netns with fd: 2000
[  489.594525] Cannot link a netdevsim to itself
[  489.594651] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).