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Software Configuration Guide—Release 15.0(2)SG
OL-23818-01
Chapter 51 Configuring SPAN and RSPAN
Configuring RSPAN
To monitor all VLANs on the trunk port, use the no monitor session session_number filter vlan global
configuration command.
Step 3
Switch(config)# [no] monitor session
{session_number} {source {interface
interface_list | {vlan vlan_IDs | cpu
[queue queue_ids]} [rx | tx | both]
Specifies the characteristics of the source port (monitored port) and
RSPAN session.
For session_number, specifies the session number identified with this
RSPAN session (1 through 6).
For interface-list, specifies the source port to monitor. The interface
specified must already be configured as a trunk port.
For vlan-IDs, the range is 1 to 4094; do not enter leading zeros.
For queue_ids, specifies the source 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 4
Switch(config)# monitor session
session_number filter vlan vlan-id [,
| -]
Limits the RSPAN source traffic to specific VLANs.
For session_number, specifies the session number identified with this
RSPAN session (1 through 6).
For vlan-id, the range is 1 to 4094; do not enter leading zeros.
(Optional) Use a comma (,) to specify a series of VLANs or use a
hyphen (-) to specify a range of VLANs. Enter a space after the
comma; enter a space before and after the hyphen.
Step 5
Switch(config)# monitor session
session_number destination remote vlan
vlan-id
Specifies the RSPAN session, 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 6
Switch(config)# end
Returns to privileged EXEC mode.
Step 7
Switch# show monitor [session
session_number]
Verifies your entries.
Step 8
Switch# copy running-config
startup-config
(Optional) Saves your entries in the configuration file.
Command Purpose
