34-8
Cisco 7600 Series Router Cisco IOS Software Configuration Guide—12.1E
78-14064-04
Chapter 34 Configuring Local SPAN and RSPAN
Configuring Local SPAN and RSPAN
• RSPAN does not support BPDU monitoring.
• Do not configure RSPAN VLANs as sources in VSPAN sessions.
• You can configure any VLAN as an RSPAN VLAN as long as all participating network devices
support configuration of RSPAN VLANs and you use the same RSPAN VLAN for each RSPAN
session in all participating network devices.
• Entering SPAN configuration commands does not clear previously configured SPAN parameters.
You must enter the no monitor session command to clear configured SPAN parameters.
Configuring Local SPAN and RSPAN
These sections describe how to configure local SPAN and RSPAN:
• Local SPAN and RSPAN Configuration Overview, page 34-8
• Configuring RSPAN VLANs, page 34-8
• Configuring Local or RSPAN Sources, page 34-9
• Monitoring Specific Source VLANs on a Source Trunk Port, page 34-10
• Configuring Local SPAN and RSPAN Destinations, page 34-10
• Verifying the Configuration, page 34-12
• Configuration Examples, page 34-12
Note With Release 12.1(11b)E and later releases, when you are in configuration mode you can enter EXEC
mode-level commands by entering the do keyword before the EXEC mode-level command.
Local SPAN and RSPAN Configuration Overview
To configure a local SPAN session, use the same session number for the sources and the destination
ports.
To configure an RSPAN source session, use the same session number for a source and a destination
RSPAN VLAN.
To configure an RSPAN destination session, use the same session number for a source RSPAN VLAN
and a destination port.
Configuring RSPAN VLANs
To configure a VLAN as an RSPAN VLAN, perform this task:
Command Purpose
Step 1
Router(config)# vlan
vlan_ID{[-vlan_ID]|[,vlan_ID])
Creates or modifies an Ethernet VLAN, a range of
Ethernet VLANs, or several Ethernet VLANs specified in
a comma-separated list (do not enter space characters).
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