[ 1456.804183][T12605] netdevsim netdevsim643 eni643np1: renamed from eth1
[ 1456.815809][T12607] netdevsim netdevsim475 eni475np1: renamed from eth0
[ 1460.665504][T12599] Could not find device with ifindex 2000 in netnsfd 11
[ 1460.666397][T12599] Could not find netns with fd: 2000
[ 1460.667119][T12599] Cannot link a netdevsim to itself
[ 1460.669099][T12599] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).