What to Do with the Data
Now that you have all this SNMP data taking up space on your hard disk, what do you do with it? MRTG graphs its data and makes nice HTML pages that can be served from an HTTP server. The same can be done with the data collected with our home grown application. Visual representation of the data is nice for getting a day to day idea of the traffic patterns on your network, as well as alert you when there is a problem. If one of the interfaces you are graphing suddenly drops to no traffic, that is probably an indication there is a problem with the line.
Along the same lines, if the CPU load on one of the routers in your network suddenly goes from 5 percent to 30 percent, you might be under a SMURF attack (a popular type ...
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