[ 1046.396044][T12634] netdevsim netdevsim331 eni331np1: renamed from eth0
[ 1046.498839][T12584] netdevsim netdevsim623 eni623np1: renamed from eth1
[ 1048.372018][T12629] Could not find device with ifindex 2000 in netnsfd 11
[ 1048.372969][T12629] Could not find netns with fd: 2000
[ 1048.373660][T12629] Cannot link a netdevsim to itself
[ 1048.374498][T12629] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).