Netflow Statistics

The use of Netflow Tool is to be able to monitor the granular traffic passing through the whole network. It involves the analysis of the netflow data being exported by flow-exporters (i.e., routers) and processing the data in a flow-collector machine. The PREGINET's Netflow Implementation involves processing and capturing real-time netflow data using CFLOWD, graphing the data using FlowScan, databasing and generating the top summaries using FlowSQL and other in-house developed scripts that queries the PostgreSQL database.

Graphs

Click here or the graph above to view all graphs.
Or you may want to generate your own customized graphs using RRGrapher.

Shown above is a quite blurred graph of well-known services at ASTI/ PREGINET Network. As you notice, it is a symmetrical graph. The positive side represents the outgoing traffic while the negative side represents the incoming traffic to ASTI/ PREGINET Network.

If you want to know more about FlowScan -- the tool used to generate this colorful graphs, please click here. Or you may want to read the PREGINET's Netflow Implementation for more complete information.

TOP Summaries

Top Talkers - This table shows the IP addresses of top talking hosts in the network.
Top Protocols - This table sho ws the most common protocols passing through the network.
Top Network Flows - This ta ble shows the top 100 network flows.
Top Sources of Data - This ta ble shows the top sites where data originates.
Top Destination of Data - This ta ble shows the top sites where data is mostly destined to.

You may want to convert an IP or hostname using this IP to Hostname Converter .

Real-Time Summaries

Since this information may contain confidential information regarding the network, it may require authentication. If you feel this is improper, kindly email NetMeas Team.

CEBU-ASTI Router

ASTI-Router

Netflow Database

The Real-time Netflow Database consists of a main database called "flowDB" which then consist of tables of flows. Each table under "flowDB" corresponds to a daily collected flows from different routers. A daily flows table can be named "flows_20020319", which means it stores the flows last March 19, 2002. Since, this database stores millions of rows of granular netflow data (i.e., by seconds), it may take a little longer in querying the database.

Click here to proceed to the Netflow Database.

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Last Revision March 12, 2003
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