[  477.228926] netdevsim netdevsim315 eni315np1: renamed from eth0
[  477.229662] netdevsim netdevsim547 eni547np1: renamed from eth1
[  477.321592] Could not find device with ifindex 2000 in netnsfd 11
[  477.321692] Could not find netns with fd: 2000
[  477.321738] Cannot link a netdevsim to itself
[  477.321788] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).