[  509.709860] netdevsim netdevsim495 eni495np1: renamed from eth0
[  509.807332] netdevsim netdevsim604 eni604np1: renamed from eth1
[  510.051891] Could not find device with ifindex 2000 in netnsfd 11
[  510.052129] Could not find netns with fd: 2000
[  510.052213] Cannot link a netdevsim to itself
[  510.052324] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).