[  512.826885] netdevsim netdevsim630 eni630np1: renamed from eth1
[  512.923888] netdevsim netdevsim324 eni324np1: renamed from eth0
[  513.159087] Could not find device with ifindex 2000 in netnsfd 11
[  513.159276] Could not find netns with fd: 2000
[  513.159403] Cannot link a netdevsim to itself
[  513.159511] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).