[  747.707062][T14567] netdevsim netdevsim444 eni444np1: renamed from eth0
[  747.720962][T14569] netdevsim netdevsim555 eni555np1: renamed from eth1
[  748.246562][T14555] Could not find device with ifindex 2000 in netnsfd 11
[  748.247024][T14555] Could not find netns with fd: 2000
[  748.247356][T14555] Cannot link a netdevsim to itself
[  748.247749][T14555] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).