Aggregating Links In Dynamic Mode - HP A6600 Configuration Manual

Figure 4 Set the aggregation state of a member port in a static aggregation group
To ensure stable aggregation state and service continuity, do not change port attributes or class-two
configurations on any member port.
If a static aggregation group has reached the limit on selected ports, any port joins the group is placed in
the unselected state to avoid traffic interruption on the current selected ports. Avoid this situation, however,
because it may cause the aggregation state of a port to change after a reboot.

Aggregating links in dynamic mode

LACP is automatically enabled on all member ports in a dynamic aggregation group. The protocol
automatically maintains the aggregation state of ports.
The dynamic link aggregation procedure comprises:
Selecting a reference port
•
Setting the aggregation state of each member port
•
Selecting a reference port
The local system (the actor) and the remote system (the partner) negotiate a reference port using the
following workflow:
Compare the system ID (comprising the system LACP priority and the system MAC address). The
1.
system with the lower LACP priority value wins out. If they are the same, compare the system MAC
addresses. The system with the lower MAC address wins.
The system with the smaller system ID selects the port with the smallest port ID as the reference port.
2.
A port ID comprises a port aggregation priority and a port number. The port with the lower
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