[  519.430331] netdevsim netdevsim488 eni488np1: renamed from eth0
[  519.528083] netdevsim netdevsim647 eni647np1: renamed from eth1
[  519.761122] Could not find device with ifindex 2000 in netnsfd 11
[  519.761310] Could not find netns with fd: 2000
[  519.761396] Cannot link a netdevsim to itself
[  519.761497] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).