[  457.097539] netdevsim netdevsim348 eni348np1: renamed from eth0
[  457.097919] netdevsim netdevsim663 eni663np1: renamed from eth1
[  457.185319] Could not find device with ifindex 2000 in netnsfd 11
[  457.185494] Could not find netns with fd: 2000
[  457.185612] Cannot link a netdevsim to itself
[  457.185745] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).