Cisco Small Business 200 Series

Quality of Service
Configuring QoS - General
Cisco Small Business 200 Series Smart Switch Administration Guide 312
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By changing the CoS/802.1p to Queue mapping (CoS/802.1p to Queue) and the Queue schedule method
and bandwidth allocation (Queue page), it is possible to achieve the desired quality of service in a network.
CoS/802.1p to Queue mapping is applicable only if CoS/802.1p is the trusted mode and the packets belong
to flows that are CoS trusted.
Queue 1 has the lowest priority, queue 4 or 8 has the highest priority.
To map CoS values to egress queues:
STEP 1 Click Quality of Service > General > CoS/802.1p to Queue.
STEP 2 Enter the parameters.
• 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. Either four or eight
egress queues are supported, where Queue 4 or Queue 8 is the highest priority egress queue and
Queue1 is the lowest priority.
STEP 3 For each 802.1p priority, select the Output Queue to which it is mapped.
STEP 4 Click Apply, Cancel or Restore Defaults. 801.1p priority values to queues are
mapped, and the Running Configuration file is updated, the changes that were
entered are cancelled, or previously defined values are restored.
5 4 Voice - Cisco IP phone
default
64 Interwork Control - LVS
phone RTP
74 Network Control
802.1p
Values
(0-7, 7 being
the highest)
Queue
(4 queues 1-
4, 4 being the
highest
priority)
Notes