[  848.696621][T15653] netdevsim netdevsim378 eni378np1: renamed from eth0
[  848.719742][T15655] netdevsim netdevsim638 eni638np1: renamed from eth1
[  849.408190][T15640] Could not find device with ifindex 2000 in netnsfd 11
[  849.408965][T15640] Could not find netns with fd: 2000
[  849.409460][T15640] Cannot link a netdevsim to itself
[  849.410448][T15640] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).