[  488.593353] netdevsim netdevsim331 eni331np1: renamed from eth0
[  488.690595] netdevsim netdevsim674 eni674np1: renamed from eth1
[  488.918659] Could not find device with ifindex 2000 in netnsfd 11
[  488.918899] Could not find netns with fd: 2000
[  488.918994] Cannot link a netdevsim to itself
[  488.919105] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).