H3C Technologies H3C WX5500E Series Access Controllers - Manual (Page 48)

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• Choosing a reference port
• Setting the aggregation state of each member port
Choosing a reference port
The local system (the actor) and the remote system (the partner) negotiate a reference port by using the
following workflow:
1. The systems compare the system ID (which comprises the system LACP priority and the system MAC
address). The system with the lower LACP priority value is chosen. If they are the same, the systems
compare the system MAC addresses. The system with the lower MAC address is chosen.
2. The system with the smaller system ID chooses 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 lower
aggregation priority value is chosen. If two ports have the same aggregation priority, the system
compares their port numbers. The port with the smaller port number is chosen.
Setting the aggregation state of each member port
After the reference port is chosen, the system with the lower system ID sets the state of each member port
in the dynamic aggregation group on its side.
Figure 9 Setting the state of a member port in a dynamic aggregation group