[  481.530542] netdevsim netdevsim730 eni730np1: renamed from eth1
[  481.630637] netdevsim netdevsim406 eni406np1: renamed from eth0
[  481.957595] Could not find device with ifindex 2000 in netnsfd 11
[  481.957727] Could not find netns with fd: 2000
[  481.957805] Cannot link a netdevsim to itself
[  481.957896] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).