Mirroring - IBM BladeCenter Installation And User Manual

To add a new entry to the multicast forwarding table, enter the MAC address of the
multicast source in the Multicast MAC Address field and enter the VLAN ID
number of the VLAN that will be receiving the multicast packets in the VID field.
Then, select the member ports. Each port can be an Egress or a non-member of
the multicast group, on a per-VLAN basis. An Egress member specifies the port as
being a static member of the multicast group. Egress member ports are ports that
will be transmitting traffic for the multicast group. A Non-Member specifies the port
as not being a member of the multicast group, but the port can become a member
of the multicast group dynamically. Click Apply to make the changes current. Select
Save Changes to enter the changes into NVRAM (see "Saving changes" on
page 72).

Mirroring

The switch module enables you to copy frames that were transmitted and received
on a source port and to redirect the copies to another target port. The source port
can be one of the four 10/100/1000 Mbps external ports, while the target port is
where you will connect a monitoring/troubleshooting device, such as a sniffer or an
RMON probe and, it must be one of the four 10/100/1000 Mbps external ports.
You can attach a monitoring device to the mirrored port, such as a sniffer or an
RMON probe, to view details about the packets that pass through the first port. This
is useful for network monitoring and troubleshooting purposes.
The default setting for port mirroring is Disabled.
The Port Mirroring Settings window contains the following information:
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Chapter 5. Web-Based network management