33Configuring the description of an aggregate interfaceYou can configure the description of an aggregate interface for administration purposes such asdescribing the purpose of the interface.Follow these steps to configure the description of an aggregate interface:To do... Use the command... RemarksEnter system view system-view —Enter Layer 2 aggregateinterface viewinterface bridge-aggregationinterface-number —Configure the description of theaggregate interface description textOptionalBy default, the description of aninterface is interface-name Interface,such as Bridge-Aggregation1 Interface.Enabling link state traps for an aggregate interfaceYou can configure an aggregate interface to generate linkUp trap messages when its link goes up andlinkDown trap messages when its link goes down. For more information, see the Network Managementand Monitoring Configuration Guide.Follow these steps to enable link state traps on an aggregate interface:To do... Use the command... RemarksEnter system view system-view —Enable the trap functiongloballysnmp-agent trap enable [ standard[ linkdown | linkup ] * ]OptionalBy default, link state trapping isenabled globally and on allinterfaces.Enter Layer 2 aggregateinterface viewinterface bridge-aggregationinterface-number —Enable link state traps for theaggregate interface enable snmp trap updown OptionalEnabled by default.Shutting down an aggregate interfaceShutting down or bringing up an aggregate interface affects the aggregation state and link state of portsin the corresponding aggregation group in the following ways:• When an aggregate interface is shut down, all Selected ports in the aggregation group becomeunselected and their link state becomes down.• When an aggregate interface is brought up, the aggregation state of ports in the aggregationgroup is recalculated and their link state becomes up.Follow these steps to shut down an aggregate interface:
