[  630.005043][T10012] netdevsim netdevsim722 eni722np1: renamed from eth1
[  630.007246][T10011] netdevsim netdevsim374 eni374np1: renamed from eth0
[  630.787279][ T9998] Could not find device with ifindex 2000 in netnsfd 11
[  630.788841][ T9998] Could not find netns with fd: 2000
[  630.789574][ T9998] Cannot link a netdevsim to itself
[  630.790438][ T9998] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).