2-9Follow these steps to enable linkUp/linkDown trap generation for 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, linkUp/linkDowntrap generation is enabledglobally and on all interfaces.Enter aggregate interfaceviewinterface bridge-aggregationinterface-number —Enable linkUp/linkDown trapgeneration for the aggregateinterfaceenable snmp trap updown OptionalEnabled by defaultShutting Down an Aggregate InterfaceShutting down or bringing up an aggregate interface affects the selected state of the ports in thecorresponding aggregation group. When an aggregate interface is shut down, all selected ports in itsaggregation group become unselected; when the aggregate interface is brought up, the selected stateof the ports in the corresponding aggregation group is re-calculated.Follow these steps to shut down an aggregate interface:To do... Use the command... RemarksEnter system view system-view —Enter Layer 2 aggregateinterface viewinterface bridge-aggregationinterface-number —Shut down the aggregateinterface shutdownRequiredBy default, aggregate interfacesare up.After shutting down an aggregate interface, you are recommended not to use the shutdown commandand then the undo shutdown command on the member interfaces of the corresponding linkaggregation group. Otherwise, the member interfaces may be brought up.Configuring a Load Sharing Mode for Load-Sharing LinkAggregation GroupsThe hash algorithm is adopted to calculate load sharing for load-sharing link aggregation groups. Hashkeys used for calculation could be service port numbers, IP addresses, MAC addresses, incomingports, or any combinations of them. One hash key or a combination of multiple hash keys represents aload sharing mode. You can change the load sharing mode of a link aggregation group for different
