[  834.870695][T15783] netdevsim netdevsim326 eni326np1: renamed from eth0
[  834.882262][T15786] netdevsim netdevsim721 eni721np1: renamed from eth1
[  835.438363][T15771] Could not find device with ifindex 2000 in netnsfd 11
[  835.438873][T15771] Could not find netns with fd: 2000
[  835.439228][T15771] Cannot link a netdevsim to itself
[  835.439634][T15771] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).