[  521.709722] netdevsim netdevsim404 eni404np1: renamed from eth0
[  521.806362] netdevsim netdevsim533 eni533np1: renamed from eth1
[  522.072540] Could not find device with ifindex 2000 in netnsfd 11
[  522.072734] Could not find netns with fd: 2000
[  522.072811] Cannot link a netdevsim to itself
[  522.072922] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).