Chapter 5 | Advanced Configuration |
Modifying queue scheduling affects the queue settings globally. The Bandwidth screen is not used with the Service mode, as bandwidth settings are based on services.
Queue shaping can be based per queue and/or per interface. Shaping is determined by the lower specified value.The queue shaping type is selected in the Bandwidth screen.
Interface Indicates the interface for which the queue shaping information is displayed. The possible field values are:
•• Port Indicates the port for which the bandwidth settings are displayed.
•• LAG Indicates the LAG for which the bandwidth settings are displayed.
Ingress Rate Limit Status Indicates if rate limiting is defined on the interface.
Rate Limit
Egress Shaping Rate on Selected Port Indicates if rate limiting is enabled on the interface.
Committed Information Rate (CIR) Defines CIR as the queue shaping type. The possible field value is 64 - 1,000,000 Kbps.
Committed Burst Size (CBS) Defines CBS as the queue shaping type. The possible field value is
The Add to List button adds the Bandwidth configuration to the Bandwidth Table at the bottom of the screen.
QoS > Basic Mode
QoS > 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 > Advanced Mode
QoS > 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.
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