[  484.452615] netdevsim netdevsim454 eni454np1: renamed from eth0
[  484.552592] netdevsim netdevsim525 eni525np1: renamed from eth1
[  484.880877] Could not find device with ifindex 2000 in netnsfd 11
[  484.880997] Could not find netns with fd: 2000
[  484.881061] Cannot link a netdevsim to itself
[  484.881141] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).