[ 1224.808240][T11139] netdevsim netdevsim510 eni510np1: renamed from eth0
[ 1224.822683][T11140] netdevsim netdevsim612 eni612np1: renamed from eth1
[ 1228.111688][T11131] Could not find device with ifindex 2000 in netnsfd 11
[ 1228.112758][T11131] Could not find netns with fd: 2000
[ 1228.113628][T11131] Cannot link a netdevsim to itself
[ 1228.114730][T11131] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).