[  483.829958] netdevsim netdevsim300 eni300np1: renamed from eth0
[  483.832007] netdevsim netdevsim578 eni578np1: renamed from eth1
[  483.924906] Could not find device with ifindex 2000 in netnsfd 11
[  483.924998] Could not find netns with fd: 2000
[  483.925045] Cannot link a netdevsim to itself
[  483.925096] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).