Aggregating Links In Dynamic Mode; Lacp - HP FlexFabric 12900 Series Configuration Manual

Figure 9 Setting the aggregation state of a member port in a static aggregation group
For information about configuring the maximum number of Selected ports in a static aggregation group,
see "Setting the minimum and maximum numbers of Selected ports for an aggregation
To ensure stable aggregation state and service continuity, do not change the operational key or attribute
configurations on any member port. If you need to make this change, make sure you understand its
impact on the live network. Any operational key or attribute configuration change might affect the
aggregation state of link aggregation member ports and ongoing traffic.

Aggregating links in dynamic mode

Dynamic aggregation mode is implemented through IEEE 802.3ad Link Aggregation Control Protocol

(LACP).

LACP
LACP uses LACPDUs to exchange aggregation information between LACP-enabled devices.
Each member port in an LACP-enabled aggregation group exchanges information with its peer. When a
member port receives an LACPDU, it compares the received information with information received on the
40
group."