Configuring Quality of Service (QoS) Configure Quality of Service (QoS)
Digi TransPort® Routers User Guide
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3. Click Queue Profiles and configure queue profile parameters. The Configuration > Network >
QoS > Queue Profiles page contains parameters to manage the queue profiles. The queue
profile determines how QoS queues with that profile assigned to them will behave. Up to 12
queue profiles can be defined using this page. These profiles can then be assigned to QoS
queues as needed.
Queue Profile
The queue number that relates to the queues defined in the DCSP mappings page.
Minimum kbps
The minimum data transfer rate in kilobits/second that the router will try to attain for the
queue.
Maximum kbps
The maximum data transfer rate in kilobits/second that the router tries to attain for this
queue. This means that if the router determines that bandwidth is available to send more
packets from a queue that has reached its Minimum kbps setting, it sends more packets from
that queue until the Maximum kbps setting is reached.
If the bandwidth on a queue should be restricted, setting the Maximum kbps value to the
same as, or lower than the Minimum kbps value ensures that only the Minimum kbps setting
is achieved.
Maximum Packet Queue Length
The maximum length of a queue in terms of the number of packets in the queue. Any packets
received by the router that would cause the maximum length to be exceeded, are dropped.
WRED Minimum Threshold
The minimum queue length threshold for using the WRED algorithm to drop packets. Once the
queue length exceeds this value, the WRED algorithm may cause packets to be dropped.
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