[ 1025.142058][T12763] netdevsim netdevsim456 eni456np1: renamed from eth0
[ 1025.239758][T12762] netdevsim netdevsim555 eni555np1: renamed from eth1
[ 1027.041542][T12755] Could not find device with ifindex 2000 in netnsfd 11
[ 1027.043098][T12755] Could not find netns with fd: 2000
[ 1027.044313][T12755] Cannot link a netdevsim to itself
[ 1027.046352][T12755] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).