Configuring Quality of Service
Configuring QoS
Cisco Small Business 300 Series Managed Switch Administration Guide 252
18
To select the priority method and enter WRR data.
STEP 1 Click Quality of Service > General > Queue. The Queue Page opens.
STEP 2 Enter the parameters.
• Queue—Displays the queue number.
• Scheduling Method: Select one of the following options:
- Strict Priority—Traffic scheduling for the selected queue and all higher
queues is based strictly on the queue priority.
- WRR—Traffic scheduling for the selected queue is based on WRR. The
period time is divided between the WRR queues that are not empty,
meaning they have descriptors to egress. This happens only if strict
priority queues are empty.
- WRR Weight—If WRR is selected, enter the WRR weight assigned to the
queue.
- % of WRR Bandwidth—Displays the amount of bandwidth assigned to
the queue. These values represent the percent of the WRR weight.
STEP 3 Click Apply. The queues are configured, and the switch is updated.
Mapping CoS/802.1p to a Queue
The
CoS/802.1p to Queue Page
maps 802.1p priorities to egress queues. The
CoS/802.1p to Queue Table determines the egress queues of the incoming
packets based on the 802.1p priority in their VLAN Tags. For incoming untagged
packets, the 802.1p priority will be the default CoS/802.1p priority assigned to the
ingress ports.
Default Mapping Queues
802.1p
Values
(0-7, 7 being
the highest)
Queue
(4 queues 1-
4, 4 being the
highest
priority)
Queue
(2 queues:
Normal and
High)
Notes
0 1 Normal Background
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