[  488.028796] netdevsim netdevsim638 eni638np1: renamed from eth1
[  488.124985] netdevsim netdevsim369 eni369np1: renamed from eth0
[  488.353836] Could not find device with ifindex 2000 in netnsfd 11
[  488.354168] Could not find netns with fd: 2000
[  488.354280] Cannot link a netdevsim to itself
[  488.354406] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).