[ 1307.548712][T12057] netdevsim netdevsim723 eni723np1: renamed from eth1
[ 1307.553784][T12055] netdevsim netdevsim498 eni498np1: renamed from eth0
[ 1311.259064][T12048] Could not find device with ifindex 2000 in netnsfd 11
[ 1311.259818][T12048] Could not find netns with fd: 2000
[ 1311.260422][T12048] Cannot link a netdevsim to itself
[ 1311.261165][T12048] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).