3Com Switch 4200G Configuration Guide

244 CHAPTER 28: CONFIGURATION FOR MIRRORING FEATURES
Configuration procedure
Configuration example
■ Configure VLAN-based mirroring to mirror the packets received by all ports in
VLAN 2.
■ The destination port is GigabitEthernet1/0/2.
Configuration procedure:
<S4200G> system-view
System View: return to User View with Ctrl+Z.
[4200G] mirroring-group 1 local
[4200G] mirroring-group 1 mirroring-vlan 2 inbound
[4200G] interface gigabitethernet 1/0/2
[4200G-GigabitEthernet1/0/2] mirroring-group 1 monitor-port
Configuring RSPAN
The RSPAN feature of S4200G allows for MAC-based and VLAN-based remote
mirroring.
You can implement MAC-based and VLAN-based remote mirroring by performing
MAC-based and VLAN-based configurations on the remote source mirroring group of
the source switch.
Configuration prerequisites
■ The source switch, intermediate switch, and the destination switch have been
determined.
■ The source port, the reflector port, the destination port, and the Remote-probe
VLAN have been determined.
■ The direction of the packets to be monitored has been determined.
■ Intermediate switch and source switch support the function of
MAC-learning-disabled-based-on-VLAN, which also is enabled for Remote-probe
VLAN.
■ If you are configuring MAC-based remote mirroring, verify that the MAC address
you enter is a static MAC address that already exists in the MAC address entries.
■ If you are configuring VLAN-based remote mirroring, determine the corresponding
VLAN ID.
Table 214 Configure VLAN-based mirroring
Operation Command Description
Enter system view system-view -
Define a VLAN-based local
mirroring group
mirroring-group group-id local Required
Configure VLAN-based
mirroring
mirroring-group group-id
mirroring-vlan vlan-id inbound
Required
Enter Ethernet port view of
the destination port
interface interface-type
interface-number
-
Define the current port as
the destination port
mirroring-group group-id
monitor-port
Required
Display the parameter
settings of the mirroring
display mirroring-group
{ group-id | all | local }
Required
The display command can be
executed in any view