[ 1237.851986][T11141] netdevsim netdevsim589 eni589np1: renamed from eth1
[ 1237.948922][T11143] netdevsim netdevsim457 eni457np1: renamed from eth0
[ 1241.136743][T11135] Could not find device with ifindex 2000 in netnsfd 11
[ 1241.137443][T11135] Could not find netns with fd: 2000
[ 1241.138026][T11135] Cannot link a netdevsim to itself
[ 1241.138713][T11135] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).