[  836.988224][T14789] netdevsim netdevsim499 eni499np1: renamed from eth0
[  837.000219][T14791] netdevsim netdevsim693 eni693np1: renamed from eth1
[  837.744761][T14777] Could not find device with ifindex 2000 in netnsfd 11
[  837.745755][T14777] Could not find netns with fd: 2000
[  837.746253][T14777] Cannot link a netdevsim to itself
[  837.746835][T14777] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).