Specifications

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System Management Software Configuration Guide for Cisco IE 2000U and Connected Grid Switches
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Chapter 11 Configuring SPAN and RSPAN
Configuring SPAN and RSPAN
Configuring a VLAN as an RSPAN VLAN
Create a new VLAN to be the RSPAN VLAN for the RSPAN session. You must create the RSPAN VLAN
in all switches that will participate in RSPAN. You must configure RSPAN VLAN on source and
destination switches and any intermediate switches.
To get an efficient flow of RSPAN traffic, manually delete the RSPAN VLAN from all trunks that do not
need to carry the RSPAN traffic.
BEFORE YOU BEGIN
Review the “Information About SPAN and RSPAN” section on page 11-1 and “Guidelines and
Limitations” section on page 11-8.
DETAILED STEPS
To remove the remote SPAN characteristic from a VLAN and convert it back to a UNI-ENI isolated
VLAN, use the no remote-span VLAN configuration command.
EXAMPLE
This example shows how to create RSPAN VLAN 901:
Switch(config)# vlan 901
Switch(config-vlan)# remote span
Switch(config-vlan)# end
Creating an RSPAN Source Session
Follow this procedure to start an RSPAN source session and to specify the monitored source and the
destination RSPAN VLAN.
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
vlan vlan-id Enter a VLAN ID to create a VLAN, or enter the VLAN ID
of an existing VLAN, and enter VLAN configuration mode.
The range is 2 to 1001 and 1006 to 4094.
Note The RSPAN VLAN cannot be VLAN 1 (the default
VLAN) or VLAN IDs 1002 through 1005 (reserved
for Token Ring and FDDI VLANs).
If you enter the VLAN ID of a UNI-ENI community
VLAN, you must remove the community VLAN type
by entering the no uni-vlan VLAN configuration
command.
Step 3
remote-span Configure the VLAN as an RSPAN VLAN.
Step 4
end Return to privileged EXEC mode.
Step 5
copy running-config startup-config (Optional) Save the configuration in the configuration file.