The following example defines a static load-sharing group that contains ports 9 through 12, and uses the first port in the group as the master logical port 9:
enable sharing 9 grouping 9-12
In this example, logical port 9 represents physical ports 9 through 12.
When using load sharing, you should always reference the master logical port of the load-sharing group.
Coming to the algorithm used in LACP for extreme switches we may use either standard or custom algorithm. For more information you may refer to page 219 of EXOS user guide 21.1 PDF.