Cisco 2950 - Catalyst Switch - Page 494

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Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
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Chapter 25 Configuring SPAN and RSPAN
Configuring RSPAN
This example shows how to clear any existing RSPAN configuration for session 1, configure RSPAN
session 1 to monitor multiple source interfaces, and configure the destination RSPAN VLAN and the
reflector-port.
Switch(config)# no monitor session 1
Switch(config)# monitor session 1 source interface fastethernet0/10 tx
Switch(config)# monitor session 1 source interface fastethernet0/2 rx
Switch(config)# monitor session 1 source interface fastethernet0/3 rx
Switch(config)# monitor session 1 source interface port-channel 102 rx
Switch(config)# monitor session 1 destination remote vlan 901 reflector-port
fastethernet0/1
Switch(config)# end
Step 3
monitor session session_number source
interface interface-id [, | -] [both | rx | tx]
Specify the RSPAN session and the source port (monitored port).
For session_number, specify the session number identified with this
RSPAN session.
For interface-id, specify the source port to monitor. Valid interfaces
include physical interfaces and port-channel logical interfaces
(port-channel port-channel-number).
(Optional) [, | -] Specify a series or range of interfaces. Enter a space
before and after the comma; enter a space before and after the
hyphen.
(Optional) Specify the direction of traffic to monitor. If you do not
specify a traffic direction, the source interface sends both sent and
received traffic.
• both—Monitor both received and sent traffic.
• rx—Monitor received traffic.
• tx—Monitor sent traffic.
Step 4
monitor session session_number
destination remote vlan vlan-id
reflector-port interface
Specify the RSPAN session, the destination remote VLAN, and the
reflector port.
For session_number, enter the session number identified with this
RSPAN session.
For vlan-id, specify the RSPAN VLAN to carry the monitored traffic
to the destination port. (See the “Creating or Modifying an Ethernet
VLAN” section on page 17-8 for more information about creating an
RSPAN VLAN.)
For interface, specify the interface that will flood the RSPAN traffic
onto the RSPAN VLAN.
Step 5
end Return to privileged EXEC mode.
Step 6
show monitor [session session_number] Verify your entries.
Step 7
copy running-config startup-config (Optional) Save your entries in the configuration file.
Command Purpose