38
Figure 9 Setting the aggregation state of a member port in a static aggregation group
For more 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
Any operational key or attribute configuration change might affect the aggregation states 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 other member ports. In this way, the two systems reach an agreement on which ports
are placed in the Selected state.
LACP functions
LACP offers basic LACP functions and extended LACP functions, as described in
No
Operational key/attribute configurations
same as the reference port?
More candidate ports than max. number of
Selected ports?
Is the port up?
Is there any hardware restriction?
Port number as low as to set the port
to the Selected state?
Set the aggregation state of a member port
Set the port to the Selected state
Set the port to the
Unselected state
Yes
Yes
No
Yes
No
Yes
No
Yes
No
