[  488.610812] netdevsim netdevsim342 eni342np1: renamed from eth0
[  488.708151] netdevsim netdevsim646 eni646np1: renamed from eth1
[  488.934104] Could not find device with ifindex 2000 in netnsfd 11
[  488.934278] Could not find netns with fd: 2000
[  488.934359] Cannot link a netdevsim to itself
[  488.934447] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).