[  837.560826][T15807] netdevsim netdevsim308 eni308np1: renamed from eth0
[  837.584382][T15806] netdevsim netdevsim674 eni674np1: renamed from eth1
[  838.281453][T15795] Could not find device with ifindex 2000 in netnsfd 11
[  838.282212][T15795] Could not find netns with fd: 2000
[  838.282779][T15795] Cannot link a netdevsim to itself
[  838.283892][T15795] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).