[  511.571550] netdevsim netdevsim533 eni533np1: renamed from eth1
[  511.669311] netdevsim netdevsim339 eni339np1: renamed from eth0
[  511.881727] Could not find device with ifindex 2000 in netnsfd 11
[  511.881908] Could not find netns with fd: 2000
[  511.881983] Cannot link a netdevsim to itself
[  511.882085] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).