Configuring CLI-Based Packet Mirroring ! 155
Chapter 6: Packet Mirroring
Sequence of Events
Figure 9 shows the sequence of events that take place during CLI-based mirroring.
The tables after the figure describe the events indicated by the numbers and letters
in the figure. Table 25 on page 155 describes the configuration process; Table 26 on
page 155 describes the flow of traffic during a mirroring operation that is initiated
when the user logs on; and Table 27 on page 156 describes the flow of traffic when
mirroring a user who is already logged in or when mirroring a static interface.
Figure 9: CLI-Based Packet Mirroring
To create a CLI-based packet mirroring environment, you must complete the
processes listed in Ta b l e 2 5 .
Ta b l e 2 6 indicates the sequence of steps for a packet mirroring operation that takes
place when a user starts a new session.
Table 25: Setting Up the CLI-Based Packet Mirroring Environment
Process Description
A The authorized individual requests packet mirroring of a user’s or interface’s traffic
and configures the analyzer device to receive mirrored traffic.
B An individual who is authorized to use the packet mirroring CLI commands configures
the packet mirroring environment, including the secure policy, analyzer port
connection to the analyzer device, and the interface or trigger information.
Table 26: CLI-Based User-Specific Mirroring During Session Start
Step Description
1 The user logs on to an E-series router, requesting authentication by AAA.
2 AAA authenticates the user, and the router starts mirroring the user’s traffic.
3 The router sends the user’s original traffic to the intended destination.
4 The router sends the mirrored traffic to the analyzer device.
5 The analyzer device provides information to the requesting individual.
E-series router
Analyzer
interface
g014339
Authorized user
Mirrored
traffic
Mirrored user
Destination
Analyzer device
5
4
3
1
B
A
AAA
2
Requesting authority
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