Re: Scheduler per unit basis versus Scheduler per physical interface
[ Edited ]
ad 1) It is limited to 10Mbps. It works as a shaper.
ad 2) Yes, it is limited. As a matter of fact it is recommended to always limit the bandwidth on strict-high priority queues. Otherwise it can cause starvation of lower priority queues.
ad 3,4) scheduler-map applied to physical interface -> single scheduler map scheduler-map applied to physical interface + per-unit-scheduler -> same scheduler map for each logical unit scheduler-map applied per logical unit + per-unit-scheduler -> can have different scheduler maps for different logical units
ad 5) yes
If you think it's complicated try to read through CoS chapter in Juniper MX Series Orelly book 🙂 can give a headache.