[  483.567959] netdevsim netdevsim425 eni425np1: renamed from eth0
[  483.568189] netdevsim netdevsim630 eni630np1: renamed from eth1
[  483.654124] Could not find device with ifindex 2000 in netnsfd 11
[  483.654223] Could not find netns with fd: 2000
[  483.654269] Cannot link a netdevsim to itself
[  483.654322] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).