[  493.367139] netdevsim netdevsim406 eni406np1: renamed from eth0
[  493.462499] netdevsim netdevsim728 eni728np1: renamed from eth1
[  493.680000] Could not find device with ifindex 2000 in netnsfd 11
[  493.680358] Could not find netns with fd: 2000
[  493.680463] Cannot link a netdevsim to itself
[  493.680602] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).