[  511.199118] netdevsim netdevsim508 eni508np1: renamed from eth0
[  511.296451] netdevsim netdevsim559 eni559np1: renamed from eth1
[  511.522531] Could not find device with ifindex 2000 in netnsfd 11
[  511.522734] Could not find netns with fd: 2000
[  511.522825] Cannot link a netdevsim to itself
[  511.522942] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).