3Com Switch 8800 Advanced Software V5 Configuration Guide

Displaying Port Mirroring 87
n
■ Only existing static VLANs can be configured as remote port mirroring VLANs.
To remove a VLAN operating as a remote port mirroring VLAN, you need to
restore it to a normal VLAN first. A remote port mirroring group gets invalid if
the corresponding remote port mirroring VLAN is removed.
■ A port can belong to only one port mirroring group. A VLAN can be the remote
port mirroring VLAN of only one port mirroring group.
■ Member ports of existing port mirroring groups cannot be destination ports.
■ When configuring remote port mirroring VLAN and destination ports for a
remote destination mirroring group, add the destination ports to the remote
port mirroring VLAN.
■ Use a remote port mirroring VLAN for remote port mirroring only.
■ Disable MAC address learning in remote port mirroring VLANs to ensure the
functionality of remote port mirroring.
Displaying Port
Mirroring
Port Mirroring
Configuration
Example
Local Port Mirroring
Configuration Example
Network requirements
The user’s network is described as follows:
■ Host A is connected to port Ethernet 1/1/1 of Switch C through Switch A.
■ Host B is connected to port Ethernet 1/1/2 of Switch C through Switch B.
■ The Server is connected to port Ethernet 1/1/3 of Switch C.
It is desired to monitor the packets of Host A and Host B on the Server.
This can be achieved by configuring a local port mirroring group. Perform the
following configuration on Switch C.
■ Configure port Ethernet 1/1/1 and Ethernet 1/1/2 as source mirroring ports.
■ Configure port Ethernet 1/1/3 as the destination mirroring port.
Add the
destination port
to the remote port
mirroring VLAN
The port is an access
port
port access vlan
rprobe-vlan-id
Perform one of these
three operations
according to the port
type.
The port is a trunk
port
port trunk permit vlan
rprobe-vlan-id
The port is a hybrid
port
port hybrid vlan
rprobe-vlan-id { tagged |
untagged }
To do... Use the command... Remarks
To do... Use the command... Remarks
Display the configuration of a
port mirroring group
display mirroring-group {
groupid | local |
remote-source |
remote-destination | all }
Available in any view