[  508.867302] netdevsim netdevsim600 eni600np1: renamed from eth1
[  508.965436] netdevsim netdevsim288 eni288np1: renamed from eth0
[  509.151427] Could not find device with ifindex 2000 in netnsfd 11
[  509.151583] Could not find netns with fd: 2000
[  509.151662] Cannot link a netdevsim to itself
[  509.151759] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).