[  812.749823][T15777] netdevsim netdevsim506 eni506np1: renamed from eth0
[  812.761292][T15778] netdevsim netdevsim538 eni538np1: renamed from eth1
[  813.388072][T15763] Could not find device with ifindex 2000 in netnsfd 11
[  813.388559][T15763] Could not find netns with fd: 2000
[  813.388923][T15763] Cannot link a netdevsim to itself
[  813.389483][T15763] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).