3Com Switch 8800 Configuration Guide Chapter 33 QoS Configuration
33-21
port. You can only choose port B on board 2 as its monitoring port when
configuring a second mirroring group in the same direction on board 1.
z One mirroring group can contain as many as 24 monitored ports at most.
z You can configure as many as 24 monitored ports for all the mirroring groups in
transmit group.
z You can configure 24 mirroring groups in both directions in total.
z One port can act as a mirroring port and a mirrored port at the same time for a
different mirroring group in a different direction.
More issues for the GV48 board (LSBM1GV48DA):
z For the mirroring (including incoming port mirroring and outgoing port mirroring) on
the same GV48 board, only one monitoring port is allowed. For example, if you
have configured a port mirroring group in a GV48 board, with port A as the
monitoring port, then you can only choose port A as its monitoring port when
configuring another port mirroring group.
z For all port groups configured in the system, only one monitoring port is allowed on
the same GV48 board.
For the XP4 board, the system creates two port groups by default. One group contains
ports 0 and 1, and the other contains ports 2 and 3. Pay attention to the following
limitation on port mirroring:
z Port mirroring across groups are not supported. That is, in a port monitoring group,
the monitoring port and monitored port can only be ports 0 and 1, or ports 2 and 3.
z A port group can contain one incoming and one outgoing monitoring ports (other
interface boards have each of them per board).
See the corresponding Command Manual for details of the commands.
33.3.10 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.
Perform the following configurations in Ethernet port or port group view.
Table 33-15 Configure traffic statistics
Operation Command
Configure traffic statistics which only
applies IP group ACL
traffic-statistic inbound ip-group
{ acl-number | acl-name } [ rule rule
[ system-index index ] ] [ tc-index
index ]
Remove traffic statistics setting which
only applies IP group ACL
undo traffic-statistic inbound
ip-group { acl-number | acl-name }
[ rule rule ]