[  521.491741] netdevsim netdevsim313 eni313np1: renamed from eth0
[  521.588091] netdevsim netdevsim696 eni696np1: renamed from eth1
[  521.827983] Could not find device with ifindex 2000 in netnsfd 11
[  521.828148] Could not find netns with fd: 2000
[  521.828220] Cannot link a netdevsim to itself
[  521.828309] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).