[  492.550676] netdevsim netdevsim730 eni730np1: renamed from eth1
[  492.646417] netdevsim netdevsim280 eni280np1: renamed from eth0
[  492.893799] Could not find device with ifindex 2000 in netnsfd 11
[  492.894164] Could not find netns with fd: 2000
[  492.894291] Cannot link a netdevsim to itself
[  492.894436] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).