User guide

B
LACK
D
IAMOND
U
SER
G
UIDE
3-9
P
ORT
-M
IRRORING
To define a load-sharing group, you assign a group of ports to a single, logical port
number. To enable or disable a load-sharing group, use the following commands:
enable sharing <slot:master_port> grouping <slot:portlist>
disable sharing <slot:master_port>
The ports assigned to a load-sharing group cannot be members of a Spanning
Tree Diamond (STPD).
The following example defines a load-sharing group on slot 3 that contains ports 9
through 12, and uses the first port in the group as the master logical port 9:
enable sharing 3:9 grouping 3:9-3:12
In this example, logical port 3:9 represents physical ports 3:9 through 3:12.
When using load sharing, you should always reference the master logical port of
the load-sharing group (port 3:9 in the previous example) when configuring or
viewing VLANs. VLANs configured to use other ports in the load-sharing group
will have those ports deleted from the VLAN when load sharing becomes enabled.
V
ERIFYING THE
L
OAD
-S
HARING
C
ONFIGURATION
The screen output resulting from the
show port config
command indicates the ports
that are involved in load sharing and the master logical port identity.
P
ORT
-M
IRRORING
Port-mirroring configures the BlackDiamond to copy all traffic associated with one or
more ports on a particular slot to a monitor port on the same slot. The monitor port can
be connected to a network analyzer or RMON probe for packet analysis. The system
uses a traffic filter that copies a group of traffic to the monitor port. The traffic filter can
be defined based on one of the following criteria:
• MAC source address/destination address — All data sent to or received from a
particular source or destination MAC address is copied to the monitor port.
• Physical port — All data that traverses the port, regardless of VLAN configuration,
is copied to the monitor port.