[  755.821933][T14751] netdevsim netdevsim331 eni331np1: renamed from eth0
[  755.837989][T14753] netdevsim netdevsim754 eni754np1: renamed from eth1
[  756.361306][T14739] Could not find device with ifindex 2000 in netnsfd 11
[  756.361810][T14739] Could not find netns with fd: 2000
[  756.362170][T14739] Cannot link a netdevsim to itself
[  756.362609][T14739] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).