[ 1244.451758][T12781] netdevsim netdevsim513 eni513np1: renamed from eth1
[ 1244.614297][T12784] netdevsim netdevsim403 eni403np1: renamed from eth0
[ 1247.523327][T12771] Could not find device with ifindex 2000 in netnsfd 11
[ 1247.524408][T12771] Could not find netns with fd: 2000
[ 1247.525288][T12771] Cannot link a netdevsim to itself
[ 1247.526407][T12771] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).