16 QoS configuration

 

 

 

 

TABLE 54

Priority grouping allocated in a 15-priority group example

 

 

 

 

 

 

Priority group ID

Bandwidth (%)

Priority flow control

 

 

 

 

 

 

 

0

55

on

 

 

 

 

 

 

 

1

25

on

 

 

 

 

 

 

 

2

0

off

 

 

 

 

 

 

 

3

0

off

 

 

 

 

 

 

 

4

5

off

 

 

 

 

 

 

 

5

0

off

 

 

 

 

 

 

 

6

15

on

 

 

 

 

 

 

 

7

0

off

 

 

 

 

15.0-15.7

Strict priority

on

 

 

 

No bandwidth % configuration

 

 

 

 

allowed

 

 

 

 

 

 

Creating a DCB map

The procedure in this section applies only for Fabric OS versions earlier than Fabric OS 7.0.

When you create a DCB map, each of the Class of Service (CoS) options (0-7) must be mapped to at least one of the Priority Group IDs (0-7) and the total bandwidth percentage must equal 100. All QoS, DCB map, and Traffic Class map configurations apply to all ports in a LAG.

There can be, at the most, 16 entries in the Priority Group table. Eight of the entries are Strict Priority entries with a Priority Group ID (15.0-15.7) and eight are user-definable entries with a Priority Group ID of 0-7. Refer to Table 54 for an example of priority group configuration.

NOTE

The 10 Gbps DCB/FC switch module can have only one DCB map.

1.Select Configure > DCB.

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

2.Select a switch, and click Edit.

3.Click the QoS tab on the Edit Switch dialog box.

The QoS dialog box displays, as shown in Figure 188.

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Image 554
Brocade Communications Systems IP250 Creating a DCB map, Off, Strict priority No bandwidth % configuration Allowed