[  491.971802] netdevsim netdevsim672 eni672np1: renamed from eth1
[  492.068267] netdevsim netdevsim317 eni317np1: renamed from eth0
[  492.302079] Could not find device with ifindex 2000 in netnsfd 11
[  492.302464] Could not find netns with fd: 2000
[  492.302557] Cannot link a netdevsim to itself
[  492.302667] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).