Advise: Obtaining Stats using Netflow?

[jmujica]

Hi.

I have a client that already have an old Netflow Collector version 3.6 and using the Cisco Netflow Data Analyzer. The customer would like to obtain how much bandwidth consume specifics prefixes accross some particular links were traffic is been aggreagated. They would like to use netflow to obtain their statistics.

My question is using which aggretation method on the collector would give me the best possible information regarding bandwidth utilization. It would be best if I can have the stats based on prefixes.. (there are a lots of them). Any ideas?

Thanks in advanced.

-Jose

[wong34539]

I would suggest that you use the Router based aggregation. Aggregation of export data is typically performed by NetFlow collection tools on management workstations. Router-based aggregation allows limited aggregation of NetFlow export records to occur on the router for the following benefits:

1. Reduce the required bandwidth between the router and the workstations

2. Reduce the number of collection workstations required

3. Improve performance and scalability on high flow-per-second routers