D-Link Unified Access System
Software User Manual
12/10/09
Page 340
Configuring Class of Service
Document
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C
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S I
NTERFACE
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UEUE
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ONFIGURATION
Use the CoS Interface Queue Configuration page to define what a particular queue does by configuring switch egress
queues. User-configurable parameters control the amount of bandwidth used by the queue, the queue depth during times
of congestion, and the scheduling of packet transmission from the set of all queues on a port. Each port has its own CoS
queue-related configuration.
The configuration process is simplified by allowing each CoS queue parameter to be configured globally or per-port. A global
configuration change is automatically applied to all ports in the system.
To display the Interface Queue Configuration page, click
LAN > QoS > Class of Service > CoS Interface Queue
Configuration
in the navigation menu.
Figure 240: Interface Queue Configuration
Table 216: Interface Queue Configuration Fields
Field
Description
Slot/Port
Specifies the interface (physical, LAG, or Global) to configure.
Minimum Bandwidth Allocated
Shows the sum of individual Minimum Bandwidth values for all queues in the interface.
The sum cannot exceed the defined maximum of 100. This value is considered while
configuring the Minimum Bandwidth for a queue in the selected interface.
Queue ID
Use the menu to select the queue per interface to be configured.
Minimum Bandwidth
Specify the minimum guaranteed bandwidth allocated to the selected queue on the
interface. Setting this value higher than its corresponding Maximum Bandwidth
automatically increases the maximum to the same value. The default value is 0. The
valid range is 0 to 100, in increments of 1. The value zero (0) means no guaranteed
minimum. The sum of individual Minimum Bandwidth values for all queues in the
selected interface cannot exceed defined maximum 100.
Scheduler Type
Selects the type of queue processing from the dropdown menu. Options are
Weighted
and
Strict
. Defining on a per-queue basis allows the user to create the desired service
characteristics for different types of traffic.
• Weighted
: Weighted round robin associates a weight to each queue. This is the
default.
• Strict
: Strict priority services traffic with the highest priority on a queue first