[ 1214.186944][T12787] netdevsim netdevsim661 eni661np1: renamed from eth1
[ 1214.282100][T12788] netdevsim netdevsim504 eni504np1: renamed from eth0
[ 1217.239616][T12777] Could not find device with ifindex 2000 in netnsfd 11
[ 1217.251828][T12777] Could not find netns with fd: 2000
[ 1217.253479][T12777] Cannot link a netdevsim to itself
[ 1217.255382][T12777] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).