[  472.361898] netdevsim netdevsim273 eni273np1: renamed from eth0
[  472.362355] netdevsim netdevsim638 eni638np1: renamed from eth1
[  472.443384] Could not find device with ifindex 2000 in netnsfd 11
[  472.443467] Could not find netns with fd: 2000
[  472.443513] Cannot link a netdevsim to itself
[  472.443566] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).