Chapter 14
| Port Mirroring Commands
RSPAN Mirroring Commands
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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
◆
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.
◆
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).
◆
Only ports can be configured as an RSPAN destination – static and dynamic
trunks are not allowed.
◆
The source port and destination port cannot be configured on the same switch.
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