Allied Telesis AT-2916SX - Manual (Page 66)

Chapter 4: Key Protocols and Interfaces
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Failover Teaming
Failover Teaming provides a redundant adapter operation in the event that
a network connection fails. When multiple Gigabit Ethernet Adapters are
installed in the same server, they can be paired into teams. Each team
must have at least one adapter, but can support up to eight adapters. The
number of teams is limited by the number of adapters that are installed.
If the primary adapter in a team is disconnected because the adapter,
cable, or switch port fails, the secondary team member becomes active. In
this case, the secondary team member redirects both the inbound and
outbound traffic originally assigned to the primary adapter. Sessions are
maintained; consequently, there is no impact to the user.
Note
Allied Telesis recommends disabling STP when you use the
teaming and fault tolerance features.