How do you properly size Performance License and or not one with the Cisco ISR 4000 Series routers?
For example, say I have an ISR 4221, which can do 35Mbps to 75 Mbps. Now with the default License, you can only do 35Mbps. So, does that mean if I have a Metro E service at 30Mbps I should get 30Mbps ingress and 30Mbps egress at the same time, or that to get symmetrical throughput I would need to get something like a Metro E service for 15Mbps ingress and 15Mbps egress?
Although, I'm guessing that same logic may or may not apply for Security Performance licenses as well?
And, what exactly does the Boost Performance license do? It looks like if you go over the PERF license, it will then only come into play. Cisco can be a bit confusing on throughput as well as know, I'm just curious.
Thanks for any input!
If the product mentioned as example : 80MB (40 Mbps in each direction)
here is the comparision and support for reference :