[  474.387664] netdevsim netdevsim449 eni449np1: renamed from eth0
[  474.388343] netdevsim netdevsim763 eni763np1: renamed from eth1
[  474.469859] Could not find device with ifindex 2000 in netnsfd 11
[  474.469943] Could not find netns with fd: 2000
[  474.469987] Cannot link a netdevsim to itself
[  474.470038] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).