Chapter 14
| Port Mirroring Commands
RSPAN Mirroring Commands
– 408 –
Example
The following example configures the switch to mirror received packets from port 2
and 3:
Console(config)#rspan session 1 source interface ethernet 1/2
Console(config)#rspan session 1 source interface ethernet 1/3
Console(config)#
rspan destination
Use this command to specify the destination port to monitor the mirrored traffic.
Use the
no
form to disable RSPAN on the specified port.
Syntax
rspan session
session-id
destination
interface
interface [
tagged
|
untagged
]
no rspan session
session-id
destination
interface
interface
session-id – A number identifying this RSPAN session. (Range: 1-3)
Three sessions are allowed, including both local and remote mirroring,
using different VLANs for RSPAN sessions.
interface
ethernet
unit/port
unit - Unit identifier. (Range: 1)
port - Port number. (Range: 1-10/28)
tagged
- Traffic exiting the destination port carries the RSPAN VLAN tag.
untagged
- Traffic exiting the destination port is untagged.
Default Setting
Traffic exiting the destination port is untagged.
Command Mode
Global Configuration
Command Usage
â—†
Only one destination port can be configured on the same switch per session,
but a destination port can be configured on more than one switch for the same
session.
â—†
Only 802.1Q trunk or hybrid (i.e., general use) ports can be configured as an
RSPAN destination port – access ports are not allowed (see switchport mode).
â—†
Only ports can be configured as an RSPAN destination – static and dynamic
trunks are not allowed.
â—†
The source port and destination port cannot be configured on the same switch.
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