[  875.097329][T15841] netdevsim netdevsim315 eni315np1: renamed from eth0
[  875.111611][T15840] netdevsim netdevsim725 eni725np1: renamed from eth1
[  875.815824][T15828] Could not find device with ifindex 2000 in netnsfd 11
[  875.816481][T15828] Could not find netns with fd: 2000
[  875.816934][T15828] Cannot link a netdevsim to itself
[  875.817450][T15828] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).