[c-nsp] difference between "bandwidth" and "priority" command inpolicy

[Pelle]

> So the priority and the police are in the same category? Different ways to do the same thing, or there is still a difference between them?

priority queueing and policing is two very different topics.

with priority queues you says "this traffic needs low latency and low
jitter, so it must be sent out as soon as possible, other traffic must
wait".

policing can be applied to any queue and is saying "the traffic in
this queue must not exceed X kbps, and drop the excess traffic".
policing can be a bit more complex than that, but that's another
story.

the combination of priority queues and a policer gives a priority
queue with a maximum bandwidth. as said before: it's important to
limit the priority traffic to avoid starvation in other queues.

-- 
Pelle