D-Link DES-3250TG User Manual page 57

The Spanning Tree Protocol will treat a link aggregation group as a single link. STP will use the port
parameters of the Master Port in the calculation of port cost and in determining the state of the link
aggregation group. If two redundant link aggregation groups are configured on the switch, STP will
block one entire group – in the same way STP will block a single port that has a redundant link.
To configure a link aggregation group, click Add on the Port Link Aggregation Group window
above:
The following fields can be set:
D-Link DES-3250TG Standalone Layer 2 Switch
Figure 6- 13. Port Link Aggregation Group window
Figure 6- 14. Port Link Aggregation Settings window
Parameter
Group ID(1-6)
State <Disabled>
Master Port <Port
1>
Member Port
Description
Allows the entry of a number used to
identify the link aggregation group −
when adding a new group. Displays
the Group ID of
selected link aggregation group −
when editing and existing entry.
This field can be toggled between
Enabled and Disabled. This is used
to turn a link aggregation group on
or off. This is useful for diagnostics,
to quickly isolate
intensive network device, or to have
an absolute backup link aggregation
group that is not under automatic
control.
The Master port of link aggregation
group.
Allows the specification of the ports
that will make
49
the currently
a bandwidth
up the link