Defining Qos Interfacesettings; Configuring Qos Queues - Cisco 200 Series Administration Manual

Configuring Quality of Service
Configuring QoS
STEP 1
STEP 2
STEP 3
STEP 4
STEP 5
STEP 6
Cisco Small Business 200 Series Smart Switch Administration Guide
Defining QoS Interface Settings
The Interface Settings Page enables configuring QoS on each port of the switch,
as follows:
QoS State Disabled on an Interface—All inbound traffic on the port is
mapped to the best effort queue and no classification/prioritization takes
place.
QoS State Enabled on an Interface—Port prioritized traffic on ingress is
based on the system-wide configured trusted mode, which is either CoS/
802. 1 p or DSCP trusted mode.
To enter QoS settings per interface:
Click Quality of Service > Interface Settings. The Interface Settings Page
opens.
Select Port or LAG to display the list of ports or LAGs.
The list of ports/LAGs is displayed. QoS State displays whether QoS is enabled
on the interface.
Select an interface, and click Edit. The Edit QoS Interface Settings opens.
Select either the Port or LAG to be modified.
Click to enable or disable QoS State for this interface.
Click Apply. The switch is updated.

Configuring QoS Queues

The switch supports four queues for each interface. Queue number four is the
highest priority queue. Queue number one is the lowest priority queue.
There are two ways of determining how traffic in queues is handled, Strict Priority
and Weighted Round Robin (WRR).
Strict Priority—Egress traffic from the highest-priority queue is transmitted first.
Traffic from the lower queues is processed only after the highest queue has been
transmitted, thus providing the highest level of priority of traffic to the highest
numbered queue.
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