Quality of Service
Workflow to Configure QoS Settings
Cisco 220 Series Smart Switches Administration Guide Release 1.1.0.x 254
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By changing the CoS/802.1p to Queue mapping, the queue schedule method, and
bandwidth allocation, it is possible to achieve the desired QoS in a network.
The CoS/802.1p to Queue mapping is applicable only if one of the following exists:
• The switch is in QoS basic mode and the trusted mode is CoS/802.1p.
• The switch is in QoS advanced mode and the packets belong to flows that
are CoS/802.1p trusted.
To map CoS values to egress queues:
STEP 1 Click Quality of Service > General > CoS/802.1p to Queue.
STEP 2 Enter the following information:
• 802.1p—Displays the 802.1p priority tag values to be assigned to an egress
queue, where 0 is the lowest and 7 is the highest priority.
• Output Queue—Select the egress queue to which the 802.1p priority is
mapped. Eight egress queues are supported, where Queue 8 is the highest
priority egress queue and Queue 1 is the lowest priority egress queue.
For each 802.1p priority, select the Output Queue to which it is mapped.
STEP 3 Click Apply. 802.1p priority values to queues are mapped, and the Running
Configuration is updated.
STEP 4 Click Restore Defaults to restore the CoS/802.1p to Queue mappings to factory
defaults.
45 Video
5 6 Voice Cisco IP phone default
6 7 Interwork Control LVS phone RTP
78 Network Control
802.1p Values
(0 to 7, 7 being
the highest)
Queue
(8 queues, 8 being
the highest priority)
Notes
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