C
HAPTER
29
| Port Mirroring Commands
RSPAN Mirroring Commands
– 1024 –
rspan remote vlan Use this command to specify the RSPAN VLAN, switch role (source,
intermediate or destination), and the uplink ports. Use the no form to
disable the RSPAN on the specified VLAN.
SYNTAX
[no] rspan session session-id remote vlan vlan-id
{source | intermediate | destination} uplink interface
session-id – A number identifying this RSPAN session. (Range: 1)
Only one mirror session is allowed, including both local and remote
mirroring. If local mirroring is enabled with the port monitor
command, then no session can be configured for RSPAN.
vlan-id - ID of configured RSPAN VLAN. (Range: 2-4092)
Use the vlan rspan command to reserve a VLAN for RSPAN
mirroring before enabling RSPAN with this command.
source - Specifies this device as the source of remotely mirrored
traffic.
intermediate - Specifies this device as an intermediate switch,
transparently passing mirrored traffic from one or more sources to
one or more destinations.
destination - Specifies this device as a switch configured with a
destination port which is to receive mirrored traffic for this session.
uplink - A port configured to receive or transmit remotely mirrored
traffic.
interface - ethernet unit/port
ethernet unit/port
unit - Unit identifier. (Range: 1)
port - Port number. (Range: 1-28)
DEFAULT SETTING
None
COMMAND MODE
Global Configuration
COMMAND USAGE
â—† Only 802.1Q trunk or hybrid (i.e., general use) ports can be configured
as an RSPAN uplink port – access ports are not allowed (see switchport
mode).
â—† Only one uplink port can be configured on a source switch, but there is
no limitation on the number of uplink ports configured on an
intermediate or destination switch.
â—† Only destination and uplink ports will be assigned by the switch as
members of this VLAN. Ports cannot be manually assigned to an RSPAN
VLAN with the switchport allowed vlan command. Nor can GVRP
dynamically add port members to an RSPAN VLAN. Also, note that the
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