[  521.699853] netdevsim netdevsim374 eni374np1: renamed from eth0
[  521.796305] netdevsim netdevsim632 eni632np1: renamed from eth1
[  522.049885] Could not find device with ifindex 2000 in netnsfd 11
[  522.050111] Could not find netns with fd: 2000
[  522.050198] Cannot link a netdevsim to itself
[  522.050297] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).