Dell PowerConnect 5524P User Manual page 502

Ports added to a LAG lose their individual port configuration. When ports are
removed from the LAG, the original port configuration is applied to the ports.
The device uses a hash function to assign packets to a LAG member. The
hash function statistically load-balances the aggregated link members. The
device considers an Aggregated Link to be a single logical port.
Aggregate ports can be linked into link-aggregation port-groups. Each group
comprises ports with the same speed, set to full-duplex operations.
Ports in a LAG can contain different media types if the ports are operating at
the same speed. Aggregated links can be manually or automatically
configured by enabling LACP on the relevant links.
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Dell PowerConnect 55xx Systems User Guide