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Intelligent Traffic Mirroring
Figure 12-11
For more information regarding targeted advertising, see the following documents:
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Traffic Mirroring and SCA BB
When traffic mirroring is configured for a certain type of traffic, in addition to all its basic functions, the
SCA BB application decides whether each flow is to be mirrored or not, based on L7 classification.
Traffic mirroring rules are configured through the SCA-BB console. These rules map the traffic to be
mirrored and analyzed to the VAS server groups. When a flow is marked for traffic mirroring, the VAS
server group for this flow is selected. If the group includes more than one VAS server, traffic will be
forwarded in such a way that the subscriber load is shared between the servers on the same group.
The mapping of traffic portions to VAS server groups is done through the standard SCA BB GUI, this
definition is given per package.
Mirroring Termination
Mirroring of a flow can continue until the flow is terminated, or be limited to a certain volume passed
over the flow. This enables a huge data reduction on the server side, as well as performance saving in the
SCE platform.
An RST packet is sent to the server when the mirroring is stopped due to a stop condition. This is done
in order to signal the server that the mirroring has stopped.
The RST packet is sent in the direction of intiator to initatee with the additional VLAN tag.
Cisco SCE 2000 and SCE 1000 Software Configuration Guide
12-48
High Level Overview of an Mirroring-based Behavioral Targeting Solution
Alice: automotive, stock trading, PDA's.....
Bob: cookware, online gaming, baby outfit.....
2
SCE mirrors
relevant traffic
to profiling
servers
1
Subscribers
browse web
Cisco Service Control Online Advertising Solution Guide: Behavioral Profile Creation Using RDRs
Cisco Service Control Online Advertising Solution Guide: Behavioral Profile Creation Using Traffic
Mirroring.
Chapter 12
...
3
Profiling servers process traffic,
extract relevant attributes and
compose subscriber profiles
2
Value Added Services (VAS) Traffic Forwarding
OL-7827-12
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