[  490.815336] netdevsim netdevsim317 eni317np1: renamed from eth0
[  490.911703] netdevsim netdevsim645 eni645np1: renamed from eth1
[  491.147393] Could not find device with ifindex 2000 in netnsfd 11
[  491.147712] Could not find netns with fd: 2000
[  491.147808] Cannot link a netdevsim to itself
[  491.147914] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).