[  475.088635] netdevsim netdevsim378 eni378np1: renamed from eth0
[  475.089163] netdevsim netdevsim684 eni684np1: renamed from eth1
[  475.179267] Could not find device with ifindex 2000 in netnsfd 11
[  475.179356] Could not find netns with fd: 2000
[  475.179400] Cannot link a netdevsim to itself
[  475.179451] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).