[  488.784178] netdevsim netdevsim270 eni270np1: renamed from eth0
[  488.885343] netdevsim netdevsim571 eni571np1: renamed from eth1
[  489.251226] Could not find device with ifindex 2000 in netnsfd 11
[  489.251382] Could not find netns with fd: 2000
[  489.251478] Cannot link a netdevsim to itself
[  489.251599] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).