[ 1233.664185][T11142] netdevsim netdevsim501 eni501np1: renamed from eth0
[ 1233.710809][T11140] netdevsim netdevsim681 eni681np1: renamed from eth1
[ 1236.994932][T11134] Could not find device with ifindex 2000 in netnsfd 11
[ 1236.995655][T11134] Could not find netns with fd: 2000
[ 1236.996187][T11134] Cannot link a netdevsim to itself
[ 1236.996911][T11134] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).