[  801.979725][T15774] netdevsim netdevsim504 eni504np1: renamed from eth0
[  801.999287][T15777] netdevsim netdevsim673 eni673np1: renamed from eth1
[  802.583188][T15762] Could not find device with ifindex 2000 in netnsfd 11
[  802.583698][T15762] Could not find netns with fd: 2000
[  802.584049][T15762] Cannot link a netdevsim to itself
[  802.584461][T15762] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).