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Chapter 5: Using the Web-based Utility for Configuration
QoS Tab - Basic Mode
WebView Switches
Committed Burst Size (CBS).
Defines CBS as the queue shaping type. The possible field value is 4096-
16,769,020 bits.
The
Add to List
button adds the Bandwidth configuration to the Bandwidth Table at the bottom of the screen.
QoS Tab - Basic Mode
The Basic Mode screen contains the following fields:
Trust Mode.
Displays the trust mode. If a packet’s CoS tag and DSCP tag are mapped to different queues, the
Trust Mode determines the queue to which the packet is assigned. Possible values are:
•
CoS.
Sets trust mode to CoS on the device. The CoS mapping determines the packet queue
•
DSCP.
Sets trust mode to DSCP on the device. The DSCP mapping determines the packet queue
QoS Tab - Advanced Mode
Advanced QoS mode provides rules for specifying flow classification and assigning rule actions that relate to
bandwidth management. The rules are based on the Access Control Lists (see Access Control Tab).
MAC ACLs and IP ACLs can be grouped together in more complex structures, called policies. Policies can be
applied to an interface. Policy ACLs are applied in the sequence they appear within the policy. Only a single policy
can be attached to a port.
In advanced QoS mode, ACLs can be applied directly to an interface in the Security - ACL Binding. However, a
policy and ACL cannot be simultaneously applied to an interface.
After assigning packets to a specific queue, services such as configuring output queues for the scheduling
scheme, or configuring output shaping for burst size, CIR, or CBS per interface or per queue, can be applied.
Out of Profile DSCP Assignments.
This button opens up the Out of Profile DSCP screen.
Figure 5-41: QoS - Advanced Mode
Figure 5-40: QoS - Basic Mode
