It can scale. There are product-related limitations there, however. For example, as the data center grows, the product needs to be replaced with another set of products. If it is a small data center, it may use a 3100 series. Then, over a period of time, if the data center scales up, more equipment gets onboarded onto your data center, then you have to upgrade it to a higher device. The hardware modules have to be increased and there are limitations for certain series. The 3100 series has certain limitations and only a certain volume of traffic can be handled. The 4100 has a certain volume of traffic it can handle. Et cetera. The biggest data center will need to scale up to an XGS 7100. 

In terms of scalability, I would say that it is a little on the poor side. I would rate it a seven out of ten in this regard. The system has a high peak usage and we have between 1,000 and 1,300 users accessing it at any given time.

We definitely have plans to increase usage in the future.

I haven't had any issues with scalability.

Not really.