DELL S50V User Manual

|

Quality of Service

www.dell.com | support.dell.com

 shows an example of choosing bandwidth weights for all four queues to achieve a target 

bandwidth allocation.

e

Specify a WRED profile to yellow and/or green traffic using the command 

 from QOS-POLICY-OUT 

mode. See 

.

There are two types of policy maps: input and output.

Create Input Policy Maps

There are two types of input policy-maps: Layer 3 and Layer 2.

1. Create a Layer 3 input policy map using the command 

 from CONFIGURATION 

mode. Create a Layer 2 input policy map by specifying the keyword 

 with the 

 

command.

2. Once you create an input policy map, do one or more of the following:

•

•

•

•

3. Apply the input policy map to an interface. See page 868.

Assign an input QoS policy to a queue using the command 

 from POLICY-MAP-IN mode.

0

1

0.44%

1%

1

64

28.44%

25%

2

128

56.89%

60%

3

32

14.22%

14%

FTOS Behavior: On ExaScale, FTOS cannot classify protocol traffic on a Layer 2 interface using 
Layer 3 policy map. The packets always take the default queue, Queue 0, and cannot be rate-policed.