12-Network Management and Monitoring Configuration Guide

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09-Sampler configuration
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09-Sampler configuration 34.29 KB

Configuring samplers

A sampler selects a packet from sequential packets and sends the packet to other service modules for processing. Sampling is useful when you want to limit the volume of traffic to be analyzed. The sampled data is statistically accurate and sampling decreases the impact on the forwarding capacity of the device.

The following sampling modes are available:

·     Fixed mode—The first packet is selected from sequential packets in each sampling.

·     Random mode—Any packet might be selected from sequential packets in each sampling. This sampling mode is not supported in the current software version.

Creating a sampler

Step

Command

Remarks

1.     Enter system view.

system-view

N/A

2.     Create a sampler.

sampler sampler-name mode fixed packet-interval n-power rate

By default, no samplers exist.

 

Displaying and maintaining a sampler

Execute display commands in any view.

 

Task

Command

Display configuration information about the sampler (in standalone mode).

display sampler [ sampler-name ] [ slot slot-number ]

Display configuration information about the sampler (in IRF mode).

display sampler [ sampler-name ] [ chassis chassis-number slot slot-number ]

 

 

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