Chapter 39 Configuring Span And Rspan; Overview Of Span And Rspan - Cisco 4500M Software Manual

Configuring SPAN and RSPAN
This chapter describes how to configure the Switched Port Analyzer (SPAN) and Remote SPAN
(RSPAN) on the Catalyst 4500 series switches. SPAN selects network traffic for analysis by a network
analyzer, such as a SwitchProbe device or other Remote Monitoring (RMON) probe.
This chapter consists of the following sections:
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For complete syntax and usage information for the switch commands used in this chapter, refer to the
Note
Catalyst 4500 Series Switch Cisco IOS Command Reference and related publications at
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/index.htm.

Overview of SPAN and RSPAN

This sections includes the following subsections:
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SPAN mirrors traffic from one or more source interfaces on any VLAN or from one or more VLANs to
a destination interface for analysis. In
interface) is mirrored to Ethernet interface 10. A network analyzer on Ethernet interface 10 receives all
network traffic from Ethernet interface 5 without being physically attached to it.
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Overview of SPAN and RSPAN, page 39-1
Configuring SPAN, page 39-6
CPU Port Sniffing, page 39-10
Encapsulation Configuration, page 39-12
Ingress Packets, page 39-12
Access List Filtering, page 39-13
Packet Type Filtering, page 39-14
Configuration Example, page 39-15
Configuring RSPAN, page 39-16
Displaying SPAN and RSPAN Status, page 39-24
SPAN and RSPAN Concepts and Terminology, page 39-3
SPAN and RSPAN Session Limits, page 39-6
Default SPAN and RSPAN Configuration, page 39-6
C H A P T E R
Figure 39-1, all traffic on Ethernet interface 5 (the source
Software Configuration Guide—Release 12.2(25)EW
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