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Cisco Catalyst 3750-X User Manual

Cisco Catalyst 3750-X
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32-2
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-21521-01
Chapter 32 Configuring SPAN and RSPAN
Understanding SPAN and RSPAN
These sections contain this conceptual information:
Local SPAN, page 32-2
Remote SPAN, page 32-3
SPAN and RSPAN Concepts and Terminology, page 32-4
SPAN and RSPAN Interaction with Other Features, page 32-9
SPAN and RSPAN and Switch Stacks, page 32-10
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 destination port for analysis. For example,
in Figure 32-1, all traffic on port 5 (the source port) is mirrored to port 10 (the destination port). A
network analyzer on port 10 receives all network traffic from port 5 without being physically attached
to
port 5.
Figure 32-1 Example of Local SPAN Configuration on a Single Switch
1 2 3 4 5 6 7 8 9 10 11 12
Port 5 traffic mirrored
on Port 10
3
2
1
4
5
67
8
9
11
12
10
Network analyzer
43580

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Cisco Catalyst 3750-X Specifications

General IconGeneral
Switching Capacity160 Gbps
Stacking Bandwidth64 Gbps
Max Stacking Units9
Layer SupportLayer 2 and Layer 3
Form FactorRack-mountable
DRAM256 MB
Flash Memory64 MB
ModelCisco Catalyst 3750-X Series
Ports24 or 48 10/100/1000 Ethernet ports
Uplink Interfaces4 SFP or 2 SFP+
FeaturesStackWise Plus, EnergyWise
ImageIP Base or IP Services
Operating Temperature0 to 40°C
Operating Humidity10 to 85% noncondensing

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