[  532.208065] netdevsim netdevsim591 eni591np1: renamed from eth1
[  532.306159] netdevsim netdevsim474 eni474np1: renamed from eth0
[  532.494949] Could not find device with ifindex 2000 in netnsfd 11
[  532.495109] Could not find netns with fd: 2000
[  532.495186] Cannot link a netdevsim to itself
[  532.495283] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).