Span And Rspan Concepts And Terminology; Span Sessions - Cisco Catalyst 3560-X Software Configuration Manual

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Table of Contents

Understanding SPAN and RSPAN

must support RSPAN VLAN

SPAN and RSPAN Concepts and Terminology

SPAN sessions (local or remote) allow you to monitor traffic on one or more ports, or one or more

VLANs, and send the monitored traffic to one or more destination ports.

A local SPAN session is an association of a destination port with source ports or source VLANs, all on

a single network device. Local SPAN does not have separate source and destination sessions. Local

SPAN sessions gather a set of ingress and egress packets specified by the user and form them into a

stream of SPAN data, which is directed to the destination port.

Catalyst 3750-X and 3560-X Switch Software Configuration Guide

Example of RSPAN Configuration

destination ports

Intermediate switches

source ports

SPAN Sessions, page 1-4

Monitored Traffic, page 1-6

Source Ports, page 1-7

Source VLANs, page 1-7

VLAN Filtering, page 1-7

Destination Port, page 1-8

RSPAN VLAN, page 1-9

source ports

Configuring SPAN and RSPAN

Catalyst 3750-x