[  523.574090] netdevsim netdevsim348 eni348np1: renamed from eth0
[  523.671694] netdevsim netdevsim726 eni726np1: renamed from eth1
[  523.888781] Could not find device with ifindex 2000 in netnsfd 11
[  523.888961] Could not find netns with fd: 2000
[  523.889071] Cannot link a netdevsim to itself
[  523.889175] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).