Allied Telesis AT-FS724 - Manual (Page 14)

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Each switch port has the following user-selectable switching modes:
❑ Store-and-forward (default)
❑ Fragment-free cut-through for 100 Mbps ports
Network administrators can configure the sending port with the
appropriate switching mode to optimize performance and enable
full-error checking. The modes reduce network bottlenecks by
offering low latency wire rate switching for the port.
With the store and forward method, the port waits to receive an
entire packet before forwarding it to its destination. This method
ensures that packets being forwarded are free of errors. The store
and forward mode (default) is automatic when data is exchanged
between 10Base-T and 100Base-TX ports.
With the cut-through method (for 100 Mbps ports only), the port
starts to forward the packet once the packet has exceeded the
smallest size (64 bytes), therefore filtering fragment frames or runts
(frames less than 64 bytes). This method provides low latency for
forwarding frames and also provides some network error protection.
Switching modes are part of the port configuration that is selected
using a terminal connected to the RS232 connector. See “Port
Configuration” on page 2-12 for details of port configuration.