[  482.709664] netdevsim netdevsim309 eni309np1: renamed from eth0
[  482.811096] netdevsim netdevsim730 eni730np1: renamed from eth1
[  483.162549] Could not find device with ifindex 2000 in netnsfd 11
[  483.162694] Could not find netns with fd: 2000
[  483.162771] Cannot link a netdevsim to itself
[  483.162851] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).