[  822.456260][T14619] netdevsim netdevsim281 eni281np1: renamed from eth0
[  822.478361][T14621] netdevsim netdevsim578 eni578np1: renamed from eth1
[  823.108252][T14607] Could not find device with ifindex 2000 in netnsfd 11
[  823.109188][T14607] Could not find netns with fd: 2000
[  823.109593][T14607] Cannot link a netdevsim to itself
[  823.110086][T14607] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).