Configuring Class Of Service; Mapping 802.1P Priority; Figure 236: 802.1P Priority Mapping - D-Link DWS-4026 User Manual

Software User Manual
12/10/09
To activate a policy on an interface, select the interface and the policy, and then click Submit.
C C
ONFIGURING
The Class of Service (CoS) queueing feature lets you directly configure certain aspects of switch queueing. This provides
the desired QoS behavior for different types of network traffic when the complexities of DiffServ are not required. The priority
of a packet arriving at an interface can be used to steer the packet to the appropriate outbound CoS queue through a
mapping table. CoS queue characteristics that affect queue mapping, such as minimum guaranteed bandwidth, transmission
rate shaping, etc., are user-configurable at the queue (or port) level. The system supports eight (0 to 7) queues per port.
The Class of Service folder contains links to the following features:
•

"Mapping 802.1p Priority"

• "Trust Mode Configuration"
• "IP DSCP Mapping Configuration"
• "CoS Interface Configuration"
• "CoS Interface Queue Configuration"
• "Configuring Auto VoIP"
M 802.1 P
APPING P RIORITY
The IEEE 802.1p feature allows traffic prioritization at the MAC level. The switch can prioritize traffic based on the 802.1p
tag attached to the L2 frame. Each port on the switch has multiple queues to give preference to certain packets over others
based on the class of service (CoS) criteria you specify. When a packet is queued for transmission in a port, the rate at which
it is serviced depends on how the queue is configured and possibly the amount of traffic present in the other queues of the
port. If a delay is necessary, packets get held in the queue until the scheduler authorizes the queue for transmission.
Use the 802.1p Priority Mapping page in the Class of Service folder to assign 802.1p priority values to various traffic classes
on one or more interfaces.
To display the page, click LAN > QoS > Class of Service > 802.1p Priority Mapping in the navigation tree.
Document 34CSFP6XXUWS-SWUM100-D7
S
LASS OF ERVICE

Figure 236: 802.1p Priority Mapping

D-Link Unified Access System

Configuring Class of Service

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