DES-3550 Layer 2 Fast Ethernet Switch User’s Guide
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priority queue will be allowed to transmit before allowing the next lowest
priority queue to transmit its packets. A value between 0 and 255 can be
specified.
Max. Latency(0-255)
Specifies the maximum amount of time the above specified hardware
priority queue will be allowed to transmit packets before allowing the next
lowest hardware priority queue to begin transmitting its packets. A value
between 0 and 255 can be specified, with this value multiplied by 16 ms to
arrive at the total allowed time for the queue to transmit packets. For
example, a value of 3 specifies 3 X 16 = 48 ms. The queue will continue
transmitting the last packet until it is finished when the max latency timer
expires.
Note
: The settings you assign to the queues, numbers 0-7, represent the
IEEE 802.1p priority tag number. Do not confuse these settings with port
numbers.
Traffic Segmentation
Traffic segmentation is used to limit traffic flow from a single port to a group of ports on
either a single switch (in standalone mode) or a group of ports on another switch in a switch
stack (Single IP). This method of segmenting the flow of traffic is similar to using VLANs to
limit traffic, but is more restrictive. It provides a method of directing traffic that does not
increase the overhead of the Master switch CPU.
In the
Configuration
folder open the
QoS
folder and click
Traffic Segmentation
, to view the
screen shown below.
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