3Com Switch 8800 Family Configuration Guide

200 CHAPTER 22: QOS CONFIGURATION
Perform the following configurations in system view.
You can implement port mirroring configuration by setting mirroring groups at the
port. Up to 20 mirroring groups can be configured at a port, with each group
including one monitoring port and multiple monitored ports.
n
Switch 8800 Family series support cross-card mirroring, that is, the monitoring and
monitored ports can be at different cards.
Consider these issues when configuring port mirroring:
■ For intra-card mirroring, only one monitoring port can be configured for the
mirroring groups in the same direction.
■ For cross-card mirroring, only one monitoring port (which is on another card)
can be configured for the mirroring groups in the same direction.
■ You can only configure eight monitored ports for all the mirroring groups in
transmit group.
■ One port can act as mirroring port and mirrored port at the same time for
different mirroring group.
More issues for the GV48 or GP48 card:
■ For the mirroring (including incoming port mirroring and outgoing port
mirroring) on the same GV48 or GP48 card, only one monitoring port is
allowed.
■ For all mirroring groups configured in the system, only one monitoring port is
allowed on the same GV48 or GP48 card.
By default, two port groups of the XP4 card are created. The member ports are
port 0-1 and port 2-3 respectively. Consider these issues when configuring port
mirroring:
■ The XP4 card does not support cross-group port mirroring, that is, the
monitoring ports and monitored ports in the same port mirroring group can
only be port 0 to 1 or port 2 to 3.
■ You can configure an inbound monitoring port and an outbound monitoring
port in a port group respectively. There is only one monitoring port in other
types of interface cards.
See the corresponding Command Manual for details of the commands.
Configuring Traffic
Statistics
Traffic statistics count packets of designated service traffic, that is, the packets
match the defined ACL among those forwarded. You can view the information
with the display qos-interface traffic-statistic command.
Tabl e 175 Configure port mirroring
Operation Command
Configure port mirroring
mirroring-group groupid { inbound |
outbound } mirroring-port-list mirrored-to
monitor-port
Remove port mirroring setting undo mirroring-group groupid