[  852.544016][T15796] netdevsim netdevsim349 eni349np1: renamed from eth0
[  852.566591][T15794] netdevsim netdevsim723 eni723np1: renamed from eth1
[  853.334306][T15783] Could not find device with ifindex 2000 in netnsfd 11
[  853.335086][T15783] Could not find netns with fd: 2000
[  853.335662][T15783] Cannot link a netdevsim to itself
[  853.336286][T15783] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).