[ 1241.676251][T11140] netdevsim netdevsim311 eni311np1: renamed from eth0
[ 1241.679617][T11139] netdevsim netdevsim639 eni639np1: renamed from eth1
[ 1244.946947][T11132] Could not find device with ifindex 2000 in netnsfd 11
[ 1244.947665][T11132] Could not find netns with fd: 2000
[ 1244.948212][T11132] Cannot link a netdevsim to itself
[ 1244.949154][T11132] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).