[  787.818833][T14632] netdevsim netdevsim490 eni490np1: renamed from eth0
[  787.836002][T14634] netdevsim netdevsim670 eni670np1: renamed from eth1
[  788.699734][T14620] Could not find device with ifindex 2000 in netnsfd 11
[  788.700462][T14620] Could not find netns with fd: 2000
[  788.701026][T14620] Cannot link a netdevsim to itself
[  788.701673][T14620] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).