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Cisco Catalyst 3750-E User Manual

Cisco Catalyst 3750-E
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30-2
Catalyst 3750-E and 3560-E Switch Software Configuration Guide
OL-9775-08
Chapter 30 Configuring SPAN and RSPAN
Understanding SPAN and RSPAN
These sections contain this conceptual information:
Local SPAN, page 30-2
Remote SPAN, page 30-3
SPAN and RSPAN Concepts and Terminology, page 30-4
SPAN and RSPAN Interaction with Other Features, page 30-10
SPAN and RSPAN and Switch Stacks, page 30-11
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 30-1, 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 30-1 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-E Specifications

General IconGeneral
SeriesCatalyst 3750-E
Switching Capacity32 Gbps
Stacking Bandwidth32 Gbps
StackWise PlusYes
Layer SupportLayer 3
MAC Address Table Size12, 000 entries
RAM256 MB
Flash Memory64 MB
Memory256 MB DRAM, 64 MB Flash
Operating Temperature32 to 113°F (0 to 45°C)
Ports48 10/100/1000 Ethernet ports
Form FactorRack-mountable
Jumbo Frame SupportYes
Input Voltage100 to 240 VAC
Storage Temperature-25 to 70 °C
Relative Humidity10 to 90% non-condensing

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