[  511.149956] netdevsim netdevsim309 eni309np1: renamed from eth0
[  511.247879] netdevsim netdevsim626 eni626np1: renamed from eth1
[  511.447448] Could not find device with ifindex 2000 in netnsfd 11
[  511.447636] Could not find netns with fd: 2000
[  511.447720] Cannot link a netdevsim to itself
[  511.447817] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).