Cisco Systems OL-6109-01 manual Learning Phase 1 - Policy Construction, 4-13

Chapter 4 Zone Configuration

Zone Traffic Learning

The Detector’s tools for constructing detection policies are the Policy Templates. These define the policies according to the Minimum Threshold and Maximum Services parameters the user provides (this chapter will not cover those advanced procedures see Chapter 7, “Policy Procedures” for further details).

Once supplied with the appropriate parameters, the Detector’s Policy Templates construct the detection policies based on the zone traffic and tune the constructed policies based on the learned thresholds. The user is called to approve (accept) or reject each one of the learning phases. The learning is performed for each of the Detector zones (if applicable).

The Learning phase consists of the following:

•Learning Phase 1–Policy Construction—This is the phase in which the Detector constructs its policies with its user-defined or self-configured Policy Templates. This phase consists of traffic flowing transparently through the Detector, enabling it to discover which services are used by the zone. This chapter will detail a procedure based on the Detector’s Minimum Threshold and Maximum Services default parameters (see Chapter 7, “Policy Procedures” for further details).

•Learning Phase 2 –Threshold Tuning—This is the phase in which the Detector tunes its detection policies thresholds to closely adapt to zone traffic (see Chapter 7, “Policy Procedures” for further details).

Learning Phase 1 – Policy Construction

Note The user is directed through the Detector Learning phases without parameter definitions. For the Learning phases’ parameter definitions refer to Chapter 7, “Policy Procedures”.

To begin the first Learning phase perform the following:

1.From the Global command group level type the following:

admin@DETECTOR# learning policy-construction <zone-name>

Or alternatively:

From the zone command group level type the following:

admin@DETECTOR-conf-zone-<zone-name># learning policy-construction

	Cisco Traffic Anomaly Detector User Guide
OL-6109-01		4-13