Brocade Communications Systems IP250 user manual QoS configuration, Deleting a LAG

QoS configuration 16

4.Click Start on the Confirmation and Status dialog box to save the changes to the selected ports or LAGs.

The selected DCB ports or LAGs are enabled in the DCB Configuration dialog box.

5.Click Close to close the Confirmation and Status dialog box.

Deleting a LAG

You can only delete a link aggregation group (LAG) that is selected from a single switch. If you select multiple switches or multiple ports from two or more switches, the Delete button is disabled.

NOTE

Deleting a LAG is not supported for Network OS products. You must use the command line interface to delete a LAG for Network OS products. Refer to the Network OS Command Reference for more information.

1.Select Configure > DCB.

The DCB Configuration dialog box displays, showing the status of all DCB-related hardware and functions.

2.Select one or more LAGs (that can span multiple switches) that you want to delete from the Products/Ports list.

3.Click Delete.

The Confirmation and Status dialog box launches with the selected LAGs.

4.Click Start on the Confirmation and Status dialog box to save the changes to the DCB switches. The selected LAGs are deleted in the DCB Configuration dialog box.

5.Click Close to close the Confirmation and Status dialog box.

QoS configuration

QoS configuration involves configuring packet classification, mapping the priority and traffic class, controlling congestion, and scheduling. The configuration of these QoS entities consists of DCB Map and Traffic Class Map configuration.

In a Data Center Bridging (DCB) configuration, Enhanced Transmission Selection (ETS) and priority-based flow control (PFC) are configured by utilizing a priority table, a priority group table, and a priority traffic table. The Traffic Class map is the mapping of user priority to traffic class.

Priority-based flow control

Priority-based flow control (PFC) is an enhancement to the existing pause mechanism in Ethernet. PFC creates eight separate virtual links on the physical link and allows any of these links to be paused and restarted independently, enabling the network to create a no-drop Class of Service (CoS) for an individual virtual link.

Table 54 shows examples of how priority grouping might be allocated in a 15-priority group scenario.

Brocade Network Advisor IP User Manual	501
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