Cisco Cisco Firepower Management Center 4000
40-2
FireSIGHT System User Guide
Chapter 40 Creating Traffic Profiles
After you create and activate a traffic profile and its learning period is complete, you can create
correlation rules that trigger when you detect anomalous traffic. For example, you could write a rule that
triggers if the amount of data traversing your network (measured in packets, KBytes, or number of
connections) suddenly spikes to three standard deviations above the mean amount of traffic, which could
indicate an attack or other security policy violation. Then, you could include that rule in a correlation
policy to alert you of the traffic spike or to perform a remediation in response. For information on using
traffic profiles to detect abnormal network traffic, see
correlation rules that trigger when you detect anomalous traffic. For example, you could write a rule that
triggers if the amount of data traversing your network (measured in packets, KBytes, or number of
connections) suddenly spikes to three standard deviations above the mean amount of traffic, which could
indicate an attack or other security policy violation. Then, you could include that rule in a correlation
policy to alert you of the traffic spike or to perform a remediation in response. For information on using
traffic profiles to detect abnormal network traffic, see
.
You create traffic profiles on the Traffic Profiles page. The slider icon next to each profile indicates
whether the profile is active. If you want to base a correlation rule on a traffic profile change, you must
activate the profile. If the slider icon is blue with a check mark, the profile is active. If it is gray with an
x, the profile is inactive. For more information, see
whether the profile is active. If you want to base a correlation rule on a traffic profile change, you must
activate the profile. If the slider icon is blue with a check mark, the profile is active. If it is gray with an
x, the profile is inactive. For more information, see
.
The progress bar shows the status of the traffic profile’s learning period. When the progress bar reaches
100%, correlation rules written against the profile will trigger.
100%, correlation rules written against the profile will trigger.
Tip
You can sort traffic profiles by state (active versus inactive) or alphabetically by name using the
Sort by
drop-down list.