[c-nsp] Cisco 3550 counters and QoS

[Marco Matarazzo]

> Have you noticed that your policers are actually _designed_ to drop
> traffic and this means that it is normal to observe some differences on
> the input and output interface.

Of course it's normal and it is what I want to achieve... what I would like
is to actually have working counters! The counters on the layer3 interface
makes one believe that the port is pushing out 1.2Mbps, while actually only
1Mbps is being delivered. That's the weird thing!

> With policing I've seen drop-rates as
> high as 50% with some severely overutilized policers. You can help it a
> bit by increasing the bucket size, but you will get nowhere close to
> shaper performance.

Unfortunately, the 3550 doesn't support shaping, only policing...

Thanks!
]\/[arco