[  871.365736][T14806] netdevsim netdevsim504 eni504np1: renamed from eth0
[  871.387309][T14807] netdevsim netdevsim767 eni767np1: renamed from eth1
[  872.153139][T14794] Could not find device with ifindex 2000 in netnsfd 11
[  872.154033][T14794] Could not find netns with fd: 2000
[  872.154761][T14794] Cannot link a netdevsim to itself
[  872.155296][T14794] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).