[  483.846678] netdevsim netdevsim397 eni397np1: renamed from eth0
[  483.947707] netdevsim netdevsim731 eni731np1: renamed from eth1
[  484.281528] Could not find device with ifindex 2000 in netnsfd 11
[  484.281701] Could not find netns with fd: 2000
[  484.281785] Cannot link a netdevsim to itself
[  484.281898] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).