CS14, CSN14 Series Converter Switches
Installation and User Guide (02/06)
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evenly across all ports, resulting in a small, fixed number of packets to be stored per port.
When the port buffer fills up, dropped packets result.) This dynamic buffer allocation
provides the capability for the maximum resources of the Magnum CS14 and CSN14 Series
unit to be applied to all traffic loads, even when the traffic activity is unbalanced across the
ports. Since the traffic on an operating network is constantly varying in packet density per
port and in aggregate density, the Magnum CS14 and CSN14 Series Converter Switches are
constantly adapting internally to provide maximum network performance with the least
dropped packets.
When the Switch detects that its free buffer queue space is low, the Switch sends
industry standard (full-duplex only) PAUSE packets out to the devices sending packets to
cause “flow control”. This tells the sending devices to temporarily stop sending traffic,
which allows a traffic catch-up to occur without dropping packets. Then, normal packet
buffering and processing resumes. This flow-control sequence occurs in a small fraction of
a second and is transparent to an observer. See Section 4.6 for additional details.
