Configuring Local Port Mirroring - 3Com Switch 4800G 24-Port Configuration Manual

Other Functions
Supported by Port
Mirroring
Configuring Local Port
Mirroring
Destination device contains destination mirroring port, and remote destination
port mirroring groups are created on destination devices. Upon receiving a
mirrored packet, the destination device checks to see if the VLAN ID of the
received packet is the same as that of the remote mirroring VLAN of the remote
destination port mirroring group. If yes, the destination device forwards the packet
to the monitoring device through the destination mirroring port.
In addition, in a port mirroring group, a destination port can monitor multiple
source ports simultaneously in the mirroring group.
Follow these steps to configure local port mirroring:
To do...
Enter system view
Create a local mirroring group mirroring-group group-id
Add ports to In system view mirroring-group group-id
the port
mirroring
group as
source ports
In interface
view
Add a port to In system view mirroring-group group-id
the mirroring
group as the
destination
In interface
port
view
n
A local mirroring group is effective only when it has both source ports and the
■
destination port configured.
It is not recommended to enable STP, RSTP or MSTP on the destination port;
■
otherwise, the mirroring function may be affected.
Do not use the destination mirroring port for any purpose other than port
■
mirroring.
The source ports and the destination port cannot be the member ports of the
■
current mirroring group.
Before adding the destination port for a port mirroring group, make sure the
■
port mirroring group exists. A mirroring group can have only one destination
port.

Configuring Local Port Mirroring

Use the command...
system-view
local
mirroring-port
mirroring-port-list { both |
inbound | outbound }
interface interface-type
interface-number
[ mirroring-group group-id ]
mirroring-port { both |
inbound | outbound }
quit
monitor-port
monitor-port-id
interface interface-type
interface-number
[ mirroring-group group-id ]
monitor-port
897
Remarks
-
Required
Use either approach.
You can add ports to a port
mirroring group as source
ports in either system view or
interface view.
In system view, you can add
multiple ports to a port
mirroring group at one time.
While in interface view, you
can only add the current port
to a port mirroring group.
Use either approach.
You can add a destination
port to a port mirroring group
in either system view or
interface view. They achieve
the same purpose.