Cisco 500 Series Administration Manual page 628

Quality of Service
QoS Advanced Mode
STEP 3
STEP 4
Cisco 500 Series Stackable Managed Switch Administration Guide
To add a new class map, click Add.
Enter the parameters.
• Policy Name—Displays the policy to which the class map is being added.
• Class Map Name—Select an existing class map to be associated with the
policy. Class maps are created in the Class Mapping page.
• Action Type—Select the action regarding the ingress CoS/802.1p and/or
DSCP value of all the matching packets.
Use default trust mode
-
value. The matching packets are sent as best effort.
Always Trust
-
and DSCP of the matching packet. If a packet is an IP packet, the device
puts the packet in the egress queue based on its DSCP value and the
DSCP to Queue Table. Otherwise, the egress queue of the packet is
based on the packet's CoS/802.1p value and the CoS/802.1p to Queue
Table.
Set
- —If this option is selected, use the value entered in the New Value box
to determine the egress queue of the matching packets as follows:
If the new value (0..7) is a CoS/802.1p priority, use the priority value and
the CoS/802.1p to Queue Table to determine the egress queue of all the
matching packets.
If the new value (0..63) is a DSCP, use the new DSCP and the DSCP to
Queue Table to determine the egress queue of the matching IP packets.
Otherwise, use the new value (1..8) as the egress queue number for all the
matching packets.
• Police Type—Available in Layer 2 system mode only. Select the policer type
for the policy. The options are:
- None—No policy is used.
- Single—The policer for the policy is a single policer.
- Aggregate—The policer for the policy is an aggregate policer.
• Aggregate Policer—Available in Layer 2 system mode only. If Police Type
is Aggregate, select a previously-defined (in the Aggregate Policer page)
aggregate policer.
—Ignore the ingress CoS/802.1p and/or DSCP
—If this option is selected, the device trusts the CoS/802.1p
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