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I'm working on a customer's Analytics PoC and after get it running for a few days we could measure how many flow licenses they need. (deployed in Overlay mode, with PV-FC-180).
The customer's network is generating around 260K flows/min (EMC Analytics License usage graph)
But we discovered that the 2 TOP applications by flows in the customer's network are DNS and SNMP, followed by MS SQL Server.
Taking a closer look, as shown by EMC the number of flows in 1 hour timeframe (this is a consistent number if you extend the timeframe to days) is DNS=1.7M, SNMP=1.2M (the customer uses other SNMP applications than EMC for specific monitoring of devices) and SQL=950K (prodution databases).
With these numbers, we need 300K licenses for Analytics (which obviously costs money). But DNS and SNMP statistics (flows) aren't a concern for the customer (useless information), and are consuming Application licenses.
I was thinking about how can I exclude/ignore these types of flow from the Analytics workload, which could allow the customer to buy it.
I found this article https://extremeportal.force.com/ExtrArticleDetail?an=000082263 but I don't know if this only excludes the data from reporting (even using the Application Licensing) or it ignores these flows (and don't count as license usage).
Also, I don't know if including in the policy mirror some rules denying these protocols (as I do for GRE) could prevent the Netflow records being generated for the Analytics Engine on the PV-FC-180, saving this licensing needs.