[  472.281868] netdevsim netdevsim372 eni372np1: renamed from eth0
[  472.282635] netdevsim netdevsim535 eni535np1: renamed from eth0
[  472.363679] Could not find device with ifindex 2000 in netnsfd 11
[  472.363812] Could not find netns with fd: 2000
[  472.363913] Cannot link a netdevsim to itself
[  472.364024] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).