H3C Technologies H3C S10500 Series Switches - Manual (Page 56)

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To do... Use the command... Remarks
Enable link state traps for the
aggregate interface
enable snmp trap updown
Optional
Enabled by default.
Setting the minimum 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.
Follow these steps to set the minimum and maximum number of Selected ports for an aggregation group:
To do... Use the command... Remarks
Enter system view system-view —
Enter Layer 2 aggregate
interface view interface bridge-aggregation
interface-number
Enter
aggregate
interface
view
Enter Layer 3 aggregate
interface view interface route-aggregation
interface-number
Required
Use either command.
Set the minimum number of Selected ports
for the aggregation group link-aggregation selected-port
minimum number Required
Not specified by default.
CAUTION:
•
If you set this minimum threshold for a static aggregation group, you must also make the same setting for
its peer aggregation group to guarantee correct aggregation.
• Configuring the minimum number of Selected ports required to bring up an aggregation group might
cause all the member ports in the aggregation group to become unselected.
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.
Follow these steps to shut down an aggregate interface: