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Software Configuration Guide—Release 15.0(2)SG
OL-23818-01
Chapter 51 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.
Switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# no monitor session 1
Switch(config)# monitor session 1 source interface fastEthernet3/10 tx
Switch(config)# monitor session 1 source interface fastEthernet3/2 rx
Switch(config)# monitor session 1 source interface fastEthernet3/3 rx
Switch(config)# monitor session 1 source interface port-channel 102 rx
Switch(config)# monitor session 1 destination remote vlan 901
Switch(config)# end
Step 6
Switch(config)# [no] monitor session
{session_number} {source {interface
interface_list | {vlan vlan_IDs | cpu
[queue queue_ids]} [rx | tx | both]
Specifies the RSPAN session and the source port (monitored port).
For session_number, specifies the session number identified with this
RSPAN session (1 through 6).
For interface-list, specifies the source port to monitor. Valid
interfaces include physical interfaces and port-channel logical
interfaces (port-channel port-channel-number).
For vlan-IDs, specifies the source VLAN or VLANs to monitor.
Valid VLANs are in the range from 1 to 4094.
For queue_ids, specifies either a set of CPU queue numerical
identifiers from 1 to 32, or a named queue.
(Optional) [, | -] Specifies a series or range of interfaces. Enter a
space after the comma; enter a space before and after the hyphen.
(Optional) Specifies the direction of traffic to monitor. If you do not
specify a traffic direction, the source interface sends both transmitted
(Tx) and received (Rx) traffic. Only received traffic can be monitored
on additional source ports.
• Rx—Monitor received traffic.
• Tx—Monitor transmitted traffic.
• both—Monitor both received and transmitted traffic
(bidirectional).
Step 7
Switch(config)# monitor session
session_number destination remote vlan
vlan-ID
Specifies the RSPAN session and the destination remote VLAN.
For session_number, specifies the session number identified with this
RSPAN session (1 through 6).
For vlan-ID, specifies the RSPAN VLAN to carry the monitored
traffic to the destination port.
Step 8
Switch(config)# end
Returns to privileged EXEC mode.
Step 9
Switch# show monitor [session
session_number]
Verifies your entries.
Step 10
Switch# copy running-config
startup-config
(Optional) Saves your entries in the configuration file.
Command Purpose
