3Com Switch 8800 Advanced Software V5 Configuration Guide

84 CHAPTER 10: PORT MIRRORING CONFIGURATION
the remote destination port mirroring group by the remote device receiving the
packets.
■ Port mirroring group supports inter-module mirroring, which means that the
destination port and source ports can be located on different modules of a
device. In addition, a destination port can monitor multiple source ports
simultaneously.
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■ Currently, Switch 8800s support the three types of port mirroring groups
mentioned above as well as inter-module mirroring.
■ As for the four Ten-GigabitEthernet ports on 3C17526 4-port 10 Gig module,
port mirroring can only be implemented between port 1 and 2
(Ten-GigabitEthernet2/1/1 and Ten-GigabitEthernet2/1/2), and port 3 and 4
(Ten-GigabitEthernet2/1/3 and Ten-GigabitEthernet2/1/4.)
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CAUTION: As port mirroring conflicts with STP, RSTP, and MSTP, do not enable
STP, RSTP, or MSTP on destination mirroring ports.
Configuring Local Port
Mirroring
Follow these steps to configure local port mirroring:
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■ A local mirroring group is effective only when it has both source ports and
destination port configured.
■ Member ports of existing port mirroring groups cannot be destination ports.
■ A port mirroring group can contain multiple source ports and only one
destination port.
■ A port can belong to only one port mirroring group.
To do... Use the command... Remarks
Enter system view system-view -
Create a local mirroring group mirroring-group groupid
local
Required
Add ports to
the port
mirroring
group as
source ports
In system view mirroring-group groupid
mirroring-port
mirroring-port-list { inbound
| outbound | both }
You can add ports to a port
mirroring group as source
ports in either system view or
interface view. They achieve
the same purpose.
In Ethernet
interface view
interface interface-type
interface-number
[ mirroring-group groupid ]
mirroring-port { inbound |
outbound | both }
quit
Add a port to
the mirroring
group as the
destination
port
In system view mirroring-group groupid
monitor-port
monitor-port-id
You can add a destination
port to a port mirroring
group in either system view
or interface view. They
achieve the same purpose.
In Ethernet
interface view
interface interface-type
interface-number
[ mirroring-group groupid ]
monitor-port