[  484.264525] netdevsim netdevsim389 eni389np1: renamed from eth0
[  484.264990] netdevsim netdevsim688 eni688np1: renamed from eth1
[  484.347909] Could not find device with ifindex 2000 in netnsfd 11
[  484.348039] Could not find netns with fd: 2000
[  484.348149] Cannot link a netdevsim to itself
[  484.348263] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).