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Quality of Service
Configuring QoS Basic Mode
STEP 1
STEP 2
STEP 3
Cisco 220 Series Smart Plus Switches Administration Guide Release 1.0.0.x
Configuring Basic QoS Global Settings
Use the Global Settings page to set the trust behavior for QoS basic mode. This
configuration is active when the switch is in QoS basic mode. Packets entering a
QoS domain are classified at the edge of the QoS domain.
To define the trust mode:
Click Quality of Service > QoS Basic Mode > Global Settings.
Select a trust mode while the switch is in QoS basic mode. If a packet CoS level
and DSCP tag are mapped to separate queues, the trust mode determines the
queue to which the packet is assigned:
•
CoS/802.1p—Traffic is mapped to queues based on the VPT field in the
VLAN tag, or based on the per-port default CoS/802. 1 p value (if there is no
VLAN tag on the incoming packet), the actual mapping of the VPT to queue
can be configured on the CoS/802. 1 p to Queue page.
•
DSCP—All IP traffic is mapped to queues based on the DSCP field in the IP
header. The actual mapping of the DSCP to queue can be configured on the
DSCP to Queue Page. If traffic is not IP traffic, it is mapped to the best effort
queue.
•
IP Precedence—Traffic is mapped to queues based on the IP precedence.
the actual mapping of the IP precedence to queue can be configured on the
IP Precedence to Queue page.
•
CoS/802.1p-DSCP—Select to use Trust CoS mode for non-IP traffic and
Trust DSCP mode for IP traffic.
Click Apply. The Running Configuration is updated.
Configuring Interface QoS Settings
Use the Interface Settings page to configure 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.
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