Limiting The Number Of Selected Ports For An Aggregation Group; Shutting Down An Aggregate Interface - HP 6125G Configuration Manual

Limiting the number of Selected ports for an aggregation group

The bandwidth of an aggregate link increases along with the number of selected member ports. To avoid
congestion caused by insufficient Selected ports on an aggregate link, you can set the minimum number
of Selected ports required for bringing up the specific aggregate interface.
This minimum threshold setting affects the aggregation state of both aggregation member ports and the
aggregate interface in the following ways:
• All member ports change to the Unselected state and the link of the aggregate interface goes down,
when the number of member ports eligible for being selected is smaller than the minimum
threshold.
When the minimum threshold is reached, the eligible member ports change to the Selected state,
•
and the link of the aggregate interface goes up.
Configuration guidelines
Follow these guidelines when you configure the port threshold settings:
If you set a minimum threshold for a static aggregation group, also make the same setting for its
•
peer aggregation group to guarantee correct aggregation.
• Make sure the two link aggregation ends have the same minimum numbers of selected ports.
Make sure you understand the following impacts of the port threshold settings:
• Configuring the minimum number of Selected ports required to bring up an aggregation group may
cause all the member ports in the aggregation group to become unselected.
To limit the number of Selected ports for an aggregation group:
Step
1. Enter system view.
2. Enter Layer 2 aggregate interface
view.
3. Set the minimum number of Selected
ports for the aggregation group.

Shutting down an aggregate interface

Shutting down or bringing up an aggregate interface affects the aggregation state and link state of ports
in the corresponding aggregation group in the following ways:
When an aggregate interface is shut down, all Selected ports in the corresponding aggregation
•
group become unselected and their link state becomes down.
• When an aggregate interface is brought up, the aggregation state of ports in the corresponding
aggregation group is recalculated and their link state becomes up.
To shut down an aggregate interface:
Step
1. Enter system view.
Command
system-view
interface bridge-aggregation
interface-number
link-aggregation selected-port
minimum number
Command
system-view
39
Remarks
N/A
Use either command.
Not specified by default.
Remarks
N/A