[  472.291672] netdevsim netdevsim507 eni507np1: renamed from eth0
[  472.292338] netdevsim netdevsim596 eni596np1: renamed from eth1
[  472.375844] Could not find device with ifindex 2000 in netnsfd 11
[  472.375934] Could not find netns with fd: 2000
[  472.375976] Cannot link a netdevsim to itself
[  472.376024] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).