[  488.328507] netdevsim netdevsim260 eni260np1: renamed from eth0
[  488.329684] netdevsim netdevsim632 eni632np1: renamed from eth1
[  488.418676] Could not find device with ifindex 2000 in netnsfd 11
[  488.418760] Could not find netns with fd: 2000
[  488.418806] Cannot link a netdevsim to itself
[  488.418857] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).