C H A P T E R 9 |
Configuring Port Mirroring |
This chapter describes the Port Mirroring feature, which can serve as a diagnostic tool, debugging tool, or means of fending off attacks.
Port mirroring selects network traffic from specific ports for analysis by a network analyzer, while allowing the same traffic to be switched to its destination. You can configure many switch ports as source ports and one switch port as a destination port. You can also configure how traffic is mirrored on a source port. Packets received on the source port, transmitted on a port, or both received and transmitted, can be mirrored to the destination port.
This chapter contains the following topics:
The following are examples of the commands used in the Port Mirroring feature.
The following command sequence enables port mirroring and specifies a source and destination ports.
Monitor session ID “1” - “1” is a hardware limitation.
Use this command for a specific port. The output shows whether the port is the mirror or the probe port, what is enabled or disabled on the port, etc.
The following web pages are used with the Port Mirroring feature.
FIGURE 9-1 Multiple Port Mirroring
FIGURE 9-2 Multiple Port Mirroring - Add Source Ports
FIGURE 9-3 Multiple Port Mirroring
FIGURE 9-4 System - Port Summary
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