User guide
E
XTREME
W
ARE
S
OFTWARE
U
SER
G
UIDE
4-11
B
LACK
D
IAMOND
AND
A
LPINE
S
WITCH
P
ORT
-M
IRRORING
L
OAD
-S
HARING
E
XAMPLE
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.
Do not disable a port that is part of a load-sharing group. Disabling the port
prevents it from forwarding traffic, but still allows the link to initialize. As a result,
a partner switch does not receive a valid indication that the port is not in a
forwarding state, and the partner switch will continue to forward packets.
V
ERIFYING
THE
L
OAD
-S
HARING
C
ONFIGURATION
The screen output resulting from the
show ports configuration
command lists the
ports that are involved in load sharing and the master logical port identity.
B
LACK
D
IAMOND
AND
A
LPINE
S
WITCH
P
ORT
-M
IRRORING
Port-mirroring configures the BlackDiamond or Alpine switch to copy all traffic
associated with one or more ports. 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:
• Physical port — All data that traverses the port, regardless of VLAN configuration,
is copied to the monitor port.
• VLAN — All data to and from a particular VLAN, regardless of the physical port
configuration, is copied to the monitor port.
• Virtual port — All data specific to a VLAN on a specific port is copied to the
monitor port.