38Figure 11 Setting the aggregation state of a member port in a static aggregation groupAggregating links in dynamic modeLACP is automatically enabled on all member ports in a dynamic aggregation group. The protocolautomatically maintains the aggregation state of ports.The dynamic link aggregation process comprises:• Selecting a reference port• Setting the aggregation state of each member portSelecting a reference portThe local system (the actor) and the remote system (the partner) negotiate a reference port using thefollowing workflow:1. The systems compare the system ID (which comprises the system LACP priority and the systemMAC address). The system with the lower LACP priority value wins. If they are the same, thesystems compare the system MAC addresses. The system with the lower MAC address wins.2. The system with the smaller system ID selects the port with the smallest port ID as the reference port.A port ID comprises a port aggregation priority and a port number. The port with the loweraggregation priority value wins. If two ports have the same aggregation priority, the systemcompares their port numbers. The port with the smaller port number wins.Setting the aggregation state of each member portAfter the reference port is selected, the system with the lower system ID sets the state of each member portin the dynamic aggregation group on its side.NoPort attribute/class 2 configurationssame as the reference port?More candidate ports than max.number of Selected ports?Is the port up?Is there any hardware restriction?Port number as low as to setthe port in the Selected state?Set the aggregation stateof a member portSet the port in the Selected state Set the port in theUnselected stateYesYesNoYesNoYesNo YesNo
