Allied Telesis AT-8324SX - Manual (Page 36)

Network Planning
36
Application Notes
# Full-duplex operation only applies to point-to-point access (such
as when a switch is attached to a workstation, server or another
switch). When the switch is connected to a hub, both devices
must operate in half-duplex mode.
# When a switch is connected to a hub or any kind of shared media,
remember to turn OFF back pressure to prevent the attached port
from being frequently partitioned due to the jamming packets.
# For network applications that actually require routing (such as
when interconnecting dissimilar network types or distinct VLANs),
you may have to attach the AT-8324SX switches directly to a
router or Layer 3 switch.