User's Manual

Design Guide

RSPAN Configuration

RSPAN allows for remote traffic monitoring in the data center. Define source and destination

sessions to mirror interesting traffic to a remote VLAN captured by network-analysis tools.

Configure a VLAN for RSPAN on the Cisco Catalyst Blade Switch 3020 and the aggregate switch

as follows:

(config)# vlan <vlanID>

(config-vlan)# name <vlan name>

(config-vlan)# remote-span

Create a source session as follows. This interface is the interface or VLAN that contains interesting

traffic.

(config) # monitor session <session id> source vlan <VLAN IDs>

Configure the RSPAN VLAN as the target for the mirrored traffic as

follows:

(config) # monitor session <session ID> destination remote vlan

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