[  522.809849] netdevsim netdevsim348 eni348np1: renamed from eth0
[  522.907048] netdevsim netdevsim543 eni543np1: renamed from eth1
[  523.153128] Could not find device with ifindex 2000 in netnsfd 11
[  523.153305] Could not find netns with fd: 2000
[  523.153404] Cannot link a netdevsim to itself
[  523.153502] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).