[  485.642293] netdevsim netdevsim440 eni440np1: renamed from eth0
[  485.743636] netdevsim netdevsim563 eni563np1: renamed from eth1
[  486.096604] Could not find device with ifindex 2000 in netnsfd 11
[  486.096775] Could not find netns with fd: 2000
[  486.096872] Cannot link a netdevsim to itself
[  486.096996] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).