[  472.789028] netdevsim netdevsim271 eni271np1: renamed from eth0
[  472.790315] netdevsim netdevsim575 eni575np1: renamed from eth0
[  472.862978] Could not find device with ifindex 2000 in netnsfd 11
[  472.863071] Could not find netns with fd: 2000
[  472.863121] Cannot link a netdevsim to itself
[  472.863177] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).