[  474.432380] netdevsim netdevsim396 eni396np1: renamed from eth0
[  474.432916] netdevsim netdevsim729 eni729np1: renamed from eth1
[  474.517689] Could not find device with ifindex 2000 in netnsfd 11
[  474.517775] Could not find netns with fd: 2000
[  474.517823] Cannot link a netdevsim to itself
[  474.517873] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).