[  514.427706] netdevsim netdevsim496 eni496np1: renamed from eth0
[  514.524817] netdevsim netdevsim519 eni519np1: renamed from eth1
[  514.756943] Could not find device with ifindex 2000 in netnsfd 11
[  514.757098] Could not find netns with fd: 2000
[  514.757174] Cannot link a netdevsim to itself
[  514.757263] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).