[  474.560046] netdevsim netdevsim392 eni392np1: renamed from eth0
[  474.560977] netdevsim netdevsim749 eni749np1: renamed from eth1
[  474.650850] Could not find device with ifindex 2000 in netnsfd 11
[  474.650938] Could not find netns with fd: 2000
[  474.650982] Cannot link a netdevsim to itself
[  474.651037] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).