[  511.723478] netdevsim netdevsim344 eni344np1: renamed from eth0
[  511.821079] netdevsim netdevsim678 eni678np1: renamed from eth1
[  512.000932] Could not find device with ifindex 2000 in netnsfd 11
[  512.001072] Could not find netns with fd: 2000
[  512.001146] Cannot link a netdevsim to itself
[  512.001233] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).