rate-shape kbps command, it denotes the metric for peak and committed rate attributes). Similarly, if you use the rate-shape pps option , it denotes the metric for peak rate and committed rate attributes.

If you attempt to define the committed rate to be less than the peak rate, an error message is displayed stating that the peak rate cannot be lower than the committed rate. You can configure all the rate shaping parameters to be either in bytes or packets measure for each queue. The rate and burst parameters for both minimum and maximum settings for a queue can be either in packets or bytes. You cannot configure some of rate shaping attributes to be in bytes measure and the remaining rate shaping attributes to be in packets measure; all the rate shaping attributes must contain the same metric or unit of measure.

Example

Dell (conf-qos-policy-out) #rate-shape

pps 100 100 peak pps

 

1000 200

 

 

 

 

 

Dell (conf-qos-policy-out) #rate-shape

kbps

1024

100

peak kbps

 

102400 75

 

 

 

 

 

Dell (conf-qos-policy-out) # rate-shape 100

100 peak

1000 750

 

Dell(conf-qos-policy-in)#rate-police 100 25

peak

80 500

 

% Error: Peak rate cannot be less than

committed

rate.

service-pool wred

A global buffer pool that is a shared buffer pool accessed by multiple queues when the minimum guaranteed buffers for the queue are consumed can be configured on the S6000 and Z9000 platforms.

Create a global buffer pool that is a shared buffer pool accessed by multiple queues when the minimum guaranteed buffers for the queue are consumed. S4810, S4820T, S6000, and Z9000 platforms support four global service-pools in the egress direction. Two service pools are used—one for lossy queues and the other for lossless (priority-based flow control (PFC)) queues. You can enable WRED and ECN configuration on the global service-pools. You can define WRED profiles and weight on each of the global service-pools for both lossy and lossless (PFC) service-pools.

Syntax

Parameters

[No] service-pool wred {green weight yellow} {[pool0

number/string] [pool1 number/string]}

service-pool

Define the mapping between the service class and policy-

 

based QoS or routing.

wred

Specify WRED curve parameters for a queue.

green

Specify green (low) drop precedence to a queue.

weight

Specify a weight factor to a queue.

yellow

Specify yellow (medium) drop precedence to a queue.

pool0

Service-pool buffer 1 (default service-pool for PFC traffic) .

pool1

Service-pool buffer 0 (default service-pool for lossy traffic).

number

Enter a weight for the queue as a number in the range of 1 to

 

15. This parameter applies only if you specify the green or

 

yellow drop precedence.

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Quality of Service (QoS)

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Dell 9.7(0.0) manual Service-pool wred