Cisco Sg3008 Manual

Quality of Service
QoS Basic Mode
503 Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version) 
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If there is any port that, as an exception, should not trust the incoming CoS mark, 
disable the QoS state on that port using the Interface Settings page.
Enable or disable the global selected trusted mode at the ports by using the 
Interface Settings page. If a port is disabled without trusted mode, all its ingress 
packets are forward in best effort. It is...

Quality of Service
QoS Basic Mode
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STEP  4If Override Ingress DSCP was enabled, click DSCP Override Table to 
reconfigure DSCP.
DSCP In displays the DSCP value of the incoming packet that needs to be re-
marked to an alternative value.
STEP  5Select the DSCP Out value to indicate the outgoing value is mapped.
STEP  6Click Apply. The Running Configuration file is updated with the new DSCP values....

Quality of Service
QoS Advanced Mode
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QoS Advanced Mode
Frames that match an ACL and were permitted entrance are implicitly labeled with 
the name of the ACL that permitted their entrance. Advanced mode QoS actions 
can then be applied to these flows. 
In QoS advanced mode, the device uses policies to support per flow QoS. A 
policy and its components have the following characteristics and...

Quality of Service
QoS Advanced Mode
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Advanced QoS settings consist of three parts:
•Definitions of the rules to match. All frames matching a single group of rules 
are considered to be a flow. 
•Definition of the actions to be applied to frames in each flow that match the 
rules. 
•Binding the combinations of rules and action to one or more interfaces. 
Workflow to Configure Advanced QoS Mode 
To...

Quality of Service
QoS Advanced Mode
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Configuring Global Settings
The Global Settings page contains information for enabling Trust on the device. 
Packets entering a QoS domain are classified at the edge of the QoS domain.
To define the Trust configuration:
STEP 1Click Quality of Service > QoS Advanced Mode > Global Settings.
STEP  2Select the Trust Mode while the device is in Advanced mode. If a...

Quality of Service
QoS Advanced Mode
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NOTEThe frame is mapped to an egress queue using the new, rewritten 
value, and not by the original DSCP value. 
STEP  5If Override Ingress DSCP was enabled, click DSCP Override Table to 
reconfigure DSCP. See the DSCP Override Table page for details.
Configuring Out-of-Profile DSCP Mapping
When a policer is assigned to a class maps (flows), you can specify...

Quality of Service
QoS Advanced Mode
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To  m a p  D S C P  v a l u e s :
STEP 1Click Quality of Service > QoS Advanced Mode > Out of Profile DSCP Mapping. 
This page enables setting the change-the-DSCP-value of traffic entering or 
leaving the device.
DSCP In displays the DSCP value of the incoming packet that needs to be re-
marked to an alternative value.
STEP  2Select the DSCP Out value to where...

Quality of Service
QoS Advanced Mode
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•Class Map Name—Enter the name of a new class map.
•Match ACL Type—The criteria that a packet must match in order to be 
considered to belong to the flow defined in the class map. The options are:
-
IP—A packet must match either of the IP based ACLs in the class map.
-
MAC—A packet must match the MAC based ACL in the class map.
-
IP and MAC—A packet must match...

Quality of Service
QoS Advanced Mode
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•Aggregate Policer—An aggregate policer applies the QoS to one or more 
class maps, and one or more flows. An aggregation policer can support 
class maps from different policies. An aggregate policer applies QoS to all 
its flow(s) in aggregation regardless of policies and ports. An aggregate 
policer is created in the Aggregate Policer page.
An aggregate...

Quality of Service
QoS Advanced Mode
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STEP  3Enter the parameters.
•Aggregate Policer Name—Enter the name of the Aggregate Policer.
•Ingress Committed Information Rate (CIR)—Enter the maximum 
bandwidth allowed in bits per second. See the description of this in the 
Bandwidth page.
•Ingress Committed Burst Size (CBS)—Enter the maximum burst size (even 
if it goes beyond the CIR) in bytes. See the...