[ 1309.608126][T12060] netdevsim netdevsim507 eni507np1: renamed from eth0
[ 1309.705419][T12059] netdevsim netdevsim542 eni542np1: renamed from eth1
[ 1313.283752][T12052] Could not find device with ifindex 2000 in netnsfd 11
[ 1313.284607][T12052] Could not find netns with fd: 2000
[ 1313.285266][T12052] Cannot link a netdevsim to itself
[ 1313.286314][T12052] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).