Allied Telesis AT-S20 - Manual (Page 48)

Enabling Transmit Pacing
4-18
Note
Make sure that both ends of the connect are set to the same mode. If
only one end of the connection is capable of auto-negotiation, then
both ends of the connection must be manually set for speed and half-
or full-duplex.
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Transmit Pacing is the switch’s capability to inject transmit delays
and is selectable on a per port basis. Transmit pacing introduces
delays into the normal transmission of packets, which delays
transmission attempts between stations thereby reducing the
probability of collisions during heavy traffic (as indicated by packet
deferrals and collisions). This situation applies in cases where
congestion exists within the switch. For example, all ports on the
switch are queueing up to send traffic out through only one uplink
port. When the congestion clears, the switch stops sending the
delays so that devices can begin retransmitting. This mode then
increases the chances of successful transmission.
1. Select Port status and configuration to display the
list of ports.
2. Select a port number from the list.
The port configuration screen displays. (Partial screen is shown
here.)
3. Select Transmit pacing enabled .
Transmit pacing enabled
>No transmit pacing