[  542.903942] netdevsim netdevsim296 eni296np1: renamed from eth0
[  543.000105] netdevsim netdevsim515 eni515np1: renamed from eth1
[  543.261014] Could not find device with ifindex 2000 in netnsfd 11
[  543.261253] Could not find netns with fd: 2000
[  543.261376] Cannot link a netdevsim to itself
[  543.261530] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).