Operation Manual – Link AggregationH3C S3100-52P Ethernet Switch Chapter 1 Link Aggregation Configuration1-21.1.3 Requirements on Ports for Link AggregationTo achieve load sharing in an aggregation group, the member ports to perform loadbalancing must have the same speed, duplex mode, and basic configurations, whichinclude:z STP configuration, including STP status (enabled or disabled), link attribute(point-to-point or not), STP priority, STP path cost, STP packet format,, loop guardstatus, root guard status, edge port or not.z QoS configuration, including traffic limit, priority remarking, 802.1p priority,congestion avoidance, traffic redirection, traffic statistics, and so on.z VLAN configuration, including permitted VLANs, and default VLAN ID.z Link type configuration, which can be trunk, hybrid, or access.z GVRP configuration, including GVRP state (enabled/disabled), GVRP registrationtype, and GARP timer settings.z VLAN-VPN configuration, including VLAN-VPN state (enabled/disabled), Set theTPID value for the port, Enable the inner-to-outer tag priority replicating feature.1.2 Link Aggregation ClassificationDepending on different aggregation modes, the following three types of linkaggregation exist:z Manual aggregationz Static LACP aggregationz Dynamic LACP aggregation1.2.1 Manual Aggregation GroupI. Introduction to manual aggregation groupA manual aggregation group is manually created. All its member ports are manuallyadded and can be manually removed (it inhibits the system from automaticallyadding/removing ports to/from it). Each manual aggregation group must contain at leastone port. When a manual aggregation group contains only one port, you cannot removethe port unless you remove the whole aggregation group.LACP is disabled on the member ports of manual aggregation groups, and you cannotenable LACP on ports in a manual aggregation group.II. Port status in manual aggregation groupA port in a manual aggregation group can be in one of the two states: selected orunselected. In a manual aggregation group, only the selected ports can forward userservice packets.In a manual aggregation group, the system sets the ports to selected or unselectedstate according to the following rules.
