[  846.036073][T15663] netdevsim netdevsim633 eni633np1: renamed from eth1
[  846.042637][T15664] netdevsim netdevsim398 eni398np1: renamed from eth0
[  846.867880][T15652] Could not find device with ifindex 2000 in netnsfd 11
[  846.868530][T15652] Could not find netns with fd: 2000
[  846.869034][T15652] Cannot link a netdevsim to itself
[  846.869542][T15652] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).