Cisco Systems 3130 Local SPAN

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Cisco Catalyst Blade Switch 3130 for Dell Software Configuration Guide
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Chapter29 Configuring SPAN and RSPAN
Understanding SPAN and RSPAN
These sections contain this conceptual information:
•Local SPAN, page 29-2
•Remote SPAN, page29-3
•SPAN and RSPAN Concepts and Terminology, page29-4
•SPAN and RSPAN Interaction with Other Features, page 29-9
•SPAN and RSPAN and Switch Stacks, page29-10
Local SPAN
Local SPAN supports a SPAN session entirely within one switch; all source ports or source VLANs and
destination ports are in the same switch or switch stack. Local SPAN copies traffic from one or more
source ports in any VLAN or from one or more VLANs to a destina tion port for analysis. For example,
in Figure29-1, all traffic on port 5 (t he so urc e po rt ) i s m irro re d to po rt 1 0 (t he d esti nat ion por t). A
network analyzer on port 10 receives all network traffic from port 5 without being physically attached
to port 5.
Figure29-1 Example of Local SPAN Configuration on a Single Switch
Figure 29-2 is an example of a local SPAN in a switch stack, where the source and destination ports
reside on different stack members.
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Port 5 traffic mirrore
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