[c-nsp] ME3600X buffer calculations

[Darren O'Connor]

Hi all.

I've seen that the ME3600X has 44MB of buffer space for packets. I'm trying to work out how many virtual circuits I can push through the box before my buffers run empty.

I know this is a difficult question, as a lot depends on how much traffic is going through each EVC at any one time. I need to know how to work it out though.

As an example, let's say I'm using 12 ports each at a gig. Each port carries multiple point to point links separated by vlan tag. Certain customers would be paying for QoS and hence I'll shape to the needed speed and give priority to certain frames in a child class. If a customer were not paying for QoS I could simply police that customers frames going through the ME3600X. 

What maximum figures am I looking at in regards to maximum shaped traffic at any particular time? Or at least, how can I work this out?

Thanks

Darren