Operation Manual – Link AggregationH3C S3100 Series Ethernet Switches Chapter 1 Link Aggregation Configuration1-5priorities, then the two port numbers if the two port priorities are equal; the portwith the smallest port ID is the selected port and the left ports are unselected ports.Note:For an aggregation group:z When the rate or duplex mode of a port in the aggregation group changes, packetloss may occur on this port;z When the rate of a port decreases, if the port belongs to a manual or static LACPaggregation group, the port will be switched to the unselected state; if the portbelongs to a dynamic LACP aggregation group, deaggregation will occur on theport.1.3 Aggregation Group CategoriesDepending on whether or not load sharing is implemented, aggregation groups can beload-sharing or non-load-sharing aggregation groups. When load sharing isimplemented,z The S3100-EI series Ethernet switches perform load-sharing for IP packets basedon the source IP address and destination IP address, and for non-IP packetsbased on the source MAC address.z The S3100-SI series Ethernet switches perform load-sharing based on the sourceMAC address and destination MAC address for both IP and non-IP packets.In general, the system only provides limited load-sharing aggregation resources, so thesystem needs to reasonably allocate the resources among different aggregationgroups.The system always allocates hardware aggregation resources to the aggregationgroups with higher priorities. When load-sharing aggregation resources are used up byexisting aggregation groups, newly-created aggregation groups will benon-load-sharing ones.Load-sharing aggregation resources are allocated to aggregation groups in thefollowing order:z An aggregation group containing special ports which require hardwareaggregation resources has higher priority than any aggregation group containingno special port.z A manual or static aggregation group has higher priority than a dynamicaggregation group (unless the latter contains special ports while the former doesnot).
