[  474.144298] netdevsim netdevsim323 eni323np1: renamed from eth0
[  474.144870] netdevsim netdevsim728 eni728np1: renamed from eth1
[  474.220212] Could not find device with ifindex 2000 in netnsfd 11
[  474.220293] Could not find netns with fd: 2000
[  474.220337] Cannot link a netdevsim to itself
[  474.220388] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).