Thank you all for the suggestions, and I apologize for the confusion. Let me clarify things:
Very confusing.. is "5G routers with 1G" referring to a 5G/LTE-modem or 5Ghz WiFi access points?
It is 5G/LTE Routers with 1G Ethernet ports connecting to ISPs, WiFi is not used there. The bandwidth will vary between 100-700Mbps depending on the coverage.
It looks like four 5G connections coming into each 5009, and each of the four 5009's is feeding a number of VLANs to which the WiFi AP's will be attached.
Correct. Each 5009 will serve respective VLANs. Since we have 16 floors, each set of 4 floors will be under a single VLAN. Total 4 VLANs.
Or are you getting routers through multiple providers to help spread the load?
Yes, we are getting multiple ISPs to spread the load.
To figure out bandwidth requirements, estimate that you'll need 5-7Mbps per occupied hotel room at peak hours (usually 6pm-12am). For example, I have one section where 500 households at night use between 2200-2500Mbps.
We have 22 rooms per floor. Assuming 2 devices per room, that means 44 devices per floor. And that is 176 devices per VLAN in peak hours. 1250Mbps bandwidth requirement approximately for each 5009 router. Am I correct?
It might not be a bad idea to consider a CCR2116 with 16 cores and 12 x 1Gbps ports.
Do you mean instead of using 4 of 5009 use single CCR2116? if we use 4 of CCR2116, then the cost will be high.
Oh my... Surely there must be some more economical way than 16 5G/LTE-routers with large data-plans?
The location cannot be served with other facilities like FTTH, MPLS. Only 5G/LTE is available which has an unlimited data package. The cost will be around $100 monthly without upfront for each connection.
From the design, I'm pretty sure the CRS326 is only used as a switch and that each router would handle a number of customers across different VLANs. That's not how I would do it, but it could work.
Correct, CRS326 is only used as a switch. How would you do it? What is the best practice? I am not an expert though.
This is for seasonal usage. The peak time is around 10 days in a year where near to 2 million people gather in the city. The ISPs are capable and ready to handle such bandwidth (still, it is totally dependent on coverage. That's why we chose different ISPs).
Thanks again for your valuable time spent on these suggestions.