Juniper JUNOS OS 10.4 - FOR EX REV 1 Manual page 3947

Copyright © 2010, Juniper Networks, Inc.
Packets entering or exiting a port
Packets entering a VLAN on EX2200, EX3200, EX4200, or EX4500 switches
Packets exiting a VLAN on EX8200 switches
You can analyze the mirrored traffic using a protocol analyzer application running on a
remote monitoring station if you are sending mirrored traffic to an analyzer VLAN.
This topic includes two related examples that describe how to mirror traffic entering
ports on the switch to the
a remote monitoring station. The first example shows how to mirror all traffic entering
the ports connected to employee computers. The second example shows the same
scenario, but includes a filter to mirror only the employee traffic going to the Web.
This example describes how to configure remote port mirroring:
Requirements on page 3843
Overview and Topology on page 3843
Mirroring All Employee Traffic for Remote Analysis on page 3844
Mirroring Employee-to-Web Traffic for Remote Analysis on page 3845
Verification on page 3848
Requirements
This example uses the following hardware and software components:
Junos OS Release 9.5 or later for EX Series switches
One EX3200 or EX4200 switch connected to another EX3200 or EX4200 switch
Before you configure port mirroring, be sure you have an understanding of port mirroring
concepts.
Input interfaces that are referred by the analyzer must be configured.
Overview and Topology
This topic includes two related examples that describe how to configure port mirroring
to the VLAN so that analysis can be performed from a remote monitoring
remote-analyzer
station. The first example shows how to configure an EX Series switch to mirror all traffic
from employee computers. The second example shows the same scenario, but the setup
includes a filter to mirror only the employee traffic going to the Web.
Figure 94 on page 3844 shows the network topology for this example.
remote-analyzer VLAN so that you can perform analysis from
Chapter 138: Port Mirroring
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