[  474.859937] netdevsim netdevsim298 eni298np1: renamed from eth0
[  474.860478] netdevsim netdevsim712 eni712np1: renamed from eth1
[  474.945460] Could not find device with ifindex 2000 in netnsfd 11
[  474.945593] Could not find netns with fd: 2000
[  474.945696] Cannot link a netdevsim to itself
[  474.945806] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).