[  483.747895] netdevsim netdevsim454 eni454np1: renamed from eth0
[  483.849005] netdevsim netdevsim708 eni708np1: renamed from eth1
[  484.255385] Could not find device with ifindex 2000 in netnsfd 11
[  484.255531] Could not find netns with fd: 2000
[  484.255613] Cannot link a netdevsim to itself
[  484.255703] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).