[  518.307660] netdevsim netdevsim678 eni678np1: renamed from eth1
[  518.404374] netdevsim netdevsim488 eni488np1: renamed from eth0
[  518.671283] Could not find device with ifindex 2000 in netnsfd 11
[  518.671505] Could not find netns with fd: 2000
[  518.671598] Cannot link a netdevsim to itself
[  518.671723] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).