[  483.668878] netdevsim netdevsim419 eni419np1: renamed from eth0
[  483.669549] netdevsim netdevsim530 eni530np1: renamed from eth1
[  483.751622] Could not find device with ifindex 2000 in netnsfd 11
[  483.751710] Could not find netns with fd: 2000
[  483.751755] Cannot link a netdevsim to itself
[  483.751806] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).