Allied Telesis AT-S63 - Manual (Page 166)

Chapter 8: Static and LACP Port Trunks
166 Section I: Basic Operations
Port trunk mappings on an AT-9400 Series switch can consist of up to
eight ports. This corresponds to the maximum number of ports allowed in
a static trunk and the maximum number of active ports in an LACP trunk.
Inactive ports in an LACP trunk are not applied to the mappings until they
transition to the active status.
You can assign different load distribution methods to different static trunks
on the same switch. The same is true for LACP aggregators. However, it
should be noted that all aggregate trunks within an LACP aggregator must
use the same load distribution method.
The load distribution methods assume that the final three bits of the
source and/or destination addresses of the packets from the network
nodes are varied enough to support efficient distribution of the packets
over the trunk ports. A lack of variation can result in one or more ports in a
trunk being used more than others, with the potential loss of a trunk’s
efficiency and performance.