[  483.156523] netdevsim netdevsim455 eni455np1: renamed from eth0
[  483.257379] netdevsim netdevsim512 eni512np1: renamed from eth1
[  483.634283] Could not find device with ifindex 2000 in netnsfd 11
[  483.634434] Could not find netns with fd: 2000
[  483.634548] Cannot link a netdevsim to itself
[  483.634662] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).