[  490.482632] netdevsim netdevsim632 eni632np1: renamed from eth1
[  490.577808] netdevsim netdevsim297 eni297np1: renamed from eth0
[  490.803951] Could not find device with ifindex 2000 in netnsfd 11
[  490.804236] Could not find netns with fd: 2000
[  490.804328] Cannot link a netdevsim to itself
[  490.804415] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).