Hi,
We are planning for a medium sized ISP design capable enough to support 500 users and flexible enough to expand in future.
Here is what we have planned. In our CO, there will be initially one core router but will be adding one more soon for redundancy. From the RTR we will be connecting two Aggregation Switches which will then connect to several other POP.
Initially we will having less than 1 gig of transit from our uplink providers. All the servers and caching appliances will be placed in our CO.There are three way backup for the POP. Two links from two different Switches and one directly from another nearest POP.
Now there arises some serious practical issues:
Suppose a POP covers 3 kms radius area and it has say 150 users connected to it.
The average internet bandwidth is suppose 1 mbps.
The average caching bandwidth is about 25-30 mbps.
Is 10 gig really required for each POP or shall I distribute 1gig?
Since this is a start-up, we are looking for most cost effective solution for the equipments.
Is there any switch available in the market which is cable of distributing 10 gig with 16-24 ports.
The POPs will be at 15 kms from the CO max. So which condition is most suitable?
Place the POP at a centralised location with 10 gig uplink and backup links. Connect other nearer POPs with that Central POP.
or
Build individual POP with 110 gig uplink and backup links as per the diagram.
Can I implement CWDM here or so I need to for carrying 10 gig?
Our Core Router will be Mikrotik CCR1036-8G-2S+EM
I planned for the Mikrotik Switch but not sure if it will be capable of handling such traffic - CRS226-24G-2S+RM / CRS125-24G-1S-RM
Please guide me and share your valuable suggestions.
