[  434.711861] netdevsim netdevsim472 eni472np1: renamed from eth0
[  434.714649] netdevsim netdevsim715 eni715np1: renamed from eth1
[  434.825606] Could not find device with ifindex 2000 in netnsfd 11
[  434.825732] Could not find netns with fd: 2000
[  434.825779] Cannot link a netdevsim to itself
[  434.825867] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).