[  493.082611] netdevsim netdevsim534 eni534np1: renamed from eth1
[  493.177458] netdevsim netdevsim459 eni459np1: renamed from eth0
[  493.401265] Could not find device with ifindex 2000 in netnsfd 11
[  493.401598] Could not find netns with fd: 2000
[  493.401675] Cannot link a netdevsim to itself
[  493.401774] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).