Cisco Systems SLM248G4PS, SLM224G4PS manual QoS Dscp Settings, QoS Bandwidth, QoS Basic Mode

Chapter 5 Configuration Using the Web-based Utility

QoS > DSCP Settings

QoS > DSCP Settings

The DSCP Settings screen allows you to map Differentiated Services Code Point (DSCP) values to specific queues.

DSCP  Indicates the DSCP value in the incoming packet. Select a DSCP value from the drop-down menu to map that value to the associated queue. You can select the DSCP value for the High, Medium, and Normal priority queues. The DSCP values for the Low priority queue are selected automatically based on the other DSCP values.

Queue  The queue (1-4) to which the DSCP value is being mapped.

Click Save Settings to save the changes, or Cancel Changes to cancel the changes.

QoS > Bandwidth

QoS > Bandwidth

The Bandwidth screen allows network managers to define the bandwidth settings for a specified egress or ingress interface. 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  The interface for which the queue shaping information is displayed. Either select Unit No and select the unit number and port from the drop-down menus, or select LAG and select the LAG number from the drop- down menu.

Enable Ingress Rate Limit Status  Indicates if rate limiting is defined on the interface.

Enable Egress Shaping Rate  Indicates if rate limiting is enabled on the interface.

Committed Information Rate (CIR)  Defines CIR as the queue shaping type. The allowed values are 64 to 62500 Kbps for the 10/100 ports and 64 to 1000000 Kbps for the Gigabit ports.

Committed Burst Size (CBS)  Defines CBS as the queue shaping type. The possible field value is 4096 to 15,769,020 bits. Commited Burst Size cannot be configured on FE ports.

Click Update to add 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.

Click Save Settings to save the changes, or Cancel Changes to cancel the changes.

24/48-Port 10/100 + 4-Port Gigabit Smart Switch with Resilient Clustering Technology and PoE 35