Local Span - Cisco Catalyst 3560-X Software Configuration Manual

Understanding SPAN and RSPAN
These sections contain this conceptual information:
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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 destination port for analysis. For example,
in Figure
analyzer on port 10 receives all network traffic from port 5 without being physically attached to port 5.
Figure 1-1
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Catalyst 3750-X and 3560-X Switch Software Configuration Guide
1-2
Local SPAN, page 1-2
Remote SPAN, page 1-3
SPAN and RSPAN Concepts and Terminology, page 1-4
SPAN and RSPAN Interaction with Other Features, page 1-9
SPAN and RSPAN and Switch Stacks, page 1-10
1-1, all traffic on port 5 (the source port) is mirrored to port 10 (the destination port). A network
Example of Local SPAN Configuration on a Single Switch
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6 7
5 8
4 9
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Network analyzer
Port 5 traffic mirrored
on Port 10
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12
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Chapter 1 Configuring SPAN and RSPAN
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